mir-datasets.yaml

200DrumMachines:
  url: http://www.hexawe.net/mess/200.Drum.Machines
  metadata: audio samples
  contents: 7371 one-shots
  audio: 'yes'
  
AAM:
  url: https://zenodo.org/record/5794629
  metadata:
    - onsets
    - pitches
    - instruments
    - melody instrument
    - keys
    - chords
    - tempos
    - beats
    - segments
  contents: 3,000 music tracks (with single instrument multitracks)
  audio: 'yes'

AccoMontage2:
  url: https://github.com/billyblu2000/accomontage2
  metadata: song harmonization and accompaniment arrangement based on a lead melody
  contents: 
  audio: 'no'
  
ACM_MIRUM:
  url: http://www.marsyas.info/tempo
  metadata: tempo
  contents: 1410 excerpts (60s)
  audio: 'yes'

ADC2004:
  url: http://labrosa.ee.columbia.edu/projects/melody
  metadata: predominant pitch
  contents: 20 excerpts
  audio: 'yes'

AcousticBrainz-Genre:
  url: https://mtg.github.io/acousticbrainz-genre-dataset/
  metadata: 15-31 genres with 265-745 subgenres
  contents: audio features for about 2000000 songs
  audio: 'no'

AED:
  url: https://data.vision.ee.ethz.ch/cvl/ae_dataset/
  title: Acoustic Event Dataset
  metadata: 28 event classes
  contents: 5223 audio snippets
  audio: 'yes'

AIST-Dance-DB:
  url: https://aistdancedb.ongaaccel.jp
  title: AIST Dance Video Database
  metadata: street dance videos
  contents: 13,940 videos for 60 pieces
  audio: 'yes'

Amg1608:
  url: https://amg1608.blogspot.ch
  metadata: valence & arousal
  contents: 1608 excerpts (30s)
  audio: 'no'

AMT-pilot:
  url: https://github.com/chordify/CASD
  metadata: structure by multiple annotators
  contents: 8 songs
  audio: 'yes'

APL:
  url: https://archive.org/details/Automatic_Practice_Logging
  title: Automatic Practice Logging
  metadata: piano practice
  contents: 620 segments
  audio: 'yes'

artist20:
  url: http://labrosa.ee.columbia.edu/projects/artistid
  metadata: 20 artists
  contents: 1413 songs
  audio: 'no'

ASAP:
  url: https://github.com/fosfrancesco/asap-dataset
  metadata:
    - aligned MIDI/audio performances and MIDI/XML scores
    - beats
    - downbeats
    - time signatures
    - key signatures
  contents: 1068 MIDI performances, 520 audio performances, 222 scores
  audio: yes (see MAESTRO)
  
ATEPP:
  url: https://zenodo.org/record/6564406#.Y5QnkezP3OQ
  metadata: 
    - symbolic music MIDI
    - musicXML
    - classification tasks
    - expressive piano performances
  contents: 1742 performances (~1000 hours) by 49 pianists and covers 1580 movements by 25 composers
  audio: ''

AudioSet:
  url: https://research.google.com/audioset/index.html
  metadata: 632 event classes
  contents: 2084320 clips (10s)
  audio: 'no'

bach10:
  url: http://www2.ece.rochester.edu/projects/air/resource.html
  metadata: aligned multitrack MIDI
  contents: 10 chorales
  audio: 'yes'
  
BAF:
  url: https://github.com/guillemcortes/baf-dataset/
  metadata: 
    - audio fingerprinting
    - music monitoring in broadcast
  contents: 2,000 tracks from Epidemic Sound and 3,425 TV audio recordings (60s)
  audio: 'yes'

ballroom:
  url: http://mtg.upf.edu/ismir2004/contest/tempoContest/node5.html
  metadata:
    - 8 genres
    - tempo
    - beats: https://github.com/CPJKU/BallroomAnnotations
    - bars / downbeats: https://github.com/CPJKU/BallroomAnnotations
  contents: 698 excerpts (30s)
  audio: 'yes'

beatboxset1:
  url: http://archive.org/details/beatboxset1
  metadata: percussion annotation
  contents: 14 clips
  audio: 'yes'

BPS-FH:
  title: BPS-FH Beethoven Piano Sonata with Function Harmony
  url: https://github.com/Tsung-Ping/functional-harmony
  metadata: functional annotation
  contents: 32 sonatas
  audio: 'no'

C224a:
  url: http://www.cp.jku.at/people/schedl/datasets.html
  metadata: 14 genres
  contents: 224 artists
  audio: 'no'

C3ka:
  url: http://www.cp.jku.at/people/schedl/datasets.html
  metadata: 18 genres
  contents: 3000 artists
  audio: 'no'

C49ka-C111ka:
  url: http://www.cp.jku.at/people/schedl/datasets.html
  metadata: genres
  contents: 48800/110588 artists
  audio: 'no'

CAL500:
  url: http://calab1.ucsd.edu/~datasets/
  metadata: tags
  contents: 502 songs
  audio: 'yes'

CAL10k:
  url: http://calab1.ucsd.edu/~datasets/
  metadata: tags
  contents: 10870 songs
  audio: 'no'

CarnaticRhythm:
  url: http://compmusic.upf.edu/carnatic-rhythm-dataset
  metadata:
    - sama
    - beats
  contents: 176 pieces
  audio: on request

CASD:
  title: Chordify Annotator Subjectivity Dataset
  url: https://github.com/chordify/CASD
  metadata:
    - chords by 4 annotators
  contents: 50 songs
  audio: 'no'

CBFdataset:
  url: https://zenodo.org/record/3250223
  metadata:
    - 4 playing techniques (Chinese Bamboo Flute)
  contents: 10 performers
  audio: 'yes'

CCMixter:
  url: http://www.loria.fr/~aliutkus/kam/
  metadata:
    - vocal track
    - background track
  contents: 50 mixes
  audio: 'yes'

ChoCo:
  url: https://github.com/smashub/choco
  title: ChoCo, the Chord Corpus
  metadata:
   - chords
   - keys
   - knowledge graph: https://polifonia.disi.unibo.it/choco/
  contents: 20K+ songs/pieces
  audio: 'no'

ChoralMusicSeparation:
  url: https://github.com/RetroCirce/Choral_Music_Separation
  metadata: 
    - JSB chorales
    - separation
  contents: 8.2-hour-long choral music dataset from the JSB Chorales Dataset
  audio: 'yes'
  
Chopin22:
  url: http://iwk.mdw.ac.at/goebl/mp3.html
  metadata:
    - aligned MIDI
  contents: 44 recordings
  audio: 'yes'

Clotho:
  url: https://zenodo.org/record/3490684
  metadata:
    - 5 descriptive captions
  contents: 4981 snippets
  audio: 'yes'

CMMSD:
  url: https://sourceforge.net/projects/segmentationgt/
  metadata:
    - note/rest/transition
    - onsets
    - vibrato
  contents: 36 excerpts
  audio: 'no'

Coidach:
  url: http://jmir.sourceforge.net/Codaich.html
  metadata: 55 genres
  contents: 26420 songs
  audio: 'no'

corpusCOFLA:
  url: http://www.cofla-project.com/?page_id=170
  metadata:
    - editorial
    - predominant melody
  contents: 1800 flamenco recordings
  audio: 'no'

covers80:
  url: http://labrosa.ee.columbia.edu/projects/coversongs/covers80/
  metadata: cover songs
  contents: 80 song pairs
  audio: 'yes'

Cross-Composer:
  url: https://www.audiolabs-erlangen.de/resources/MIR/cross-comp
  metadata:
    - 11 composers
    - piece
    - key
    - era
    - instrumentation
  contents: 1100 chromagrams and chord labels
  audio: 'no'

Cross-Era:
  url: https://www.audiolabs-erlangen.de/resources/MIR/cross-era
  metadata:
    - composer
    - piece
    - key
    - era
    - instrumentation
  contents: 2000 chromagrams and chord labels
  audio: 'no'

CSD:
  url: https://zenodo.org/record/2649950
  title: Choral Singing Dataset
  metadata:
    - f0
    - MIDI
  contents: 48 recordings
  audio: 'yes'
  
dadaGP:
  url: https://github.com/dada-bots/dadaGP
  title: dadaGP dataset
  metadata: 
    - guitarPro tablatures
    - encoder and decoder python tool to and from text and token format
    - symbolic music generation
  contents: a total of 26,181 songs in guitarPro/token format for symbolic music generation
  audio: 'no'

DALI:
  url: https://github.com/gabolsgabs/DALI
  title: Dataset of synchronised Audio, LyrIcs and vocal notes
  metadata: aligned notes and lyrics
  contents: 5358 songs
  audio: 'no'

DAMP:
  url: https://ccrma.stanford.edu/damp/
  metadata:
    - karaoke performances
    - aligned lyrics: https://drive.google.com/drive/folders/1hGuE0Drv3tbN-YNRDzJJMHfzKH6e4O2A
    - pronunciation assessment: https://drive.google.com/drive/folders/19JPEWSBAM0ssatjBIJzAzjClxi2abt8w
  contents: 34000 monophonic recordings
  audio: 'yes'

Da-TACOS:
  url: https://mtg.github.io/da-tacos/
  metadata: cover songs
  contents: 25000 songs
  audio: 'no'

DCS:
  url: https://www.audiolabs-erlangen.de/resources/MIR/2020-DagstuhlChoirSet
  title: Dagstuhl ChoirSet
  metadata:
    - beats
    - time-aligned scores
    - F0
  contents: 81 takes
  audio: 'yes'

DEAM:
  url: http://cvml.unige.ch/databases/DEAM
  title: DEAM - The MediaEval Database for Emotional Analysis of Music
  metadata: valence & arousal
  contents: 1802 excerpts
  audio: 'yes'

DEAPDataset:
  url: http://www.eecs.qmul.ac.uk/mmv/datasets/deap/readme.html
  metadata:
    - valence & arousal
    - dominance
    - physiological data
  contents: 120 music video excerpts
  audio: 'no'

DESED:
  url: https://github.com/turpaultn/DESED
  metadata: 10 audio event classes
  contents: pprox 20k 10s clips (unlabeled, weakly/strongly labeled)
  audio: 'yes'

DREANSS:
  url: http://mtg.upf.edu/download/datasets/dreanss
  metadata:
    - onset times
    - percussion instruments
  contents: 18 excerpts
  audio: 'yes'

DrumPt:
  url: https://github.com/cwu307/DrumPtDataset
  metadata: 4 playing techniques
  contents: app. 2000 annotations
  audio: yes (see ENST)

DSD100:
  url: https://sigsep.github.io/datasets/dsd100.html
  metadata:
    - multitrack recordings
    - stems for vocals, drums, bass and accompaniment
  contents: 100 songs
  audio: 'yes'

emoMusic:
  url: http://cvml.unige.ch/databases/emoMusic
  metadata: arousal & valence
  contents: 744 excerpts (45s)
  audio: 'yes'

EMusic:
  url: http://cvml.unige.ch/databases/emoMusic
  metadata: arousal & valence
  contents: 100 excerpts (experimental music)
  audio: 'yes'

EMO-Soundscapes:
  url: http://cvml.unige.ch/databases/emoMusic
  metadata: arousal & valence
  contents: 1213 soundscape recordings
  audio: 'yes'

Emotify:
  url: http://www.projects.science.uu.nl/memotion/emotifydata
  metadata: induced emotion
  contents: 400 excerpts
  audio: 'yes'
  
EnsembleSet: 
  url: https://zenodo.org/record/6519024#.Y52xKex_pTZ
  metadata:
    - source separation
    - synthesized with Spitfire BBC Symphony Orchestra Professional Library
    - 20 different mix/microphone configurations
  contents: dataset presents 80 tracks (6+ hours) with a range of string, wind, and brass instruments arranged as chamber ensembles
  audio: 'yes'

ENST-Drums:
  url: http://www.tsi.telecom-paristech.fr/aao/en/2010/02/19/enst-drums-an-extensive-audio-visual-database-for-drum-signals-processing/
  metadata:
    - onset times
    - perc. instruments
    - playing technique: https://github.com/cwu307/DrumPtDataset
  contents: 318 segments
  audio: 'yes'

Erkomaishvili:
  url: https://www.audiolabs-erlangen.de/resources/MIR/2019-GeorgianMusic-Erkomaishvili
  title: Erkomaishvili Dataset
  metadata:
    - sheet music
    - structure
    - F0
    - note onsets
  contents: 118 tracks
  audio: 'yes'

Extendedballroom:
  url: http://anasynth.ircam.fr/home/media/ExtendedBallroom/
  metadata:
    - 9 genres
    - tempo
  contents: 4000 excerpts (30s)
  audio: downloadable

ExtraSensory:
  url: http://extrasensory.ucsd.edu/
  metadata: 51 context labels
  contents: 300000 sensor recordings from 60 users
  audio: 'yes'

ffuhrmann:
  url: http://www.dtic.upf.edu/~ffuhrmann/PhD/data
  metadata: 11 predom. instr.
  contents: 6951 excerpts from 220 songs
  audio: yes/no

FlaBase:
  url: http://mtg.upf.edu/download/datasets/flabase
  title: Flamenco database
  metadata:
   - editorial
   - biographical
   - musicological information on flamenco
   - 1102 artists
   - 74 palos
   - 2860 albums
  contents: 13311 tracks
  audio: 'no'
  
FifteenSongs:
  url: https://github.com/grateful-dead-live/fifteen-songs-dataset
  metadata: Grateful Dead
  contents: 15 grateful dead songs with leadsheets
  audio: 'yes'

FMA-small:
  url: https://github.com/mdeff/fma
  metadata: 8 genres
  contents: 8000 excerpts (30s)
  audio: 'yes'

FMA-medium:
  url: https://github.com/mdeff/fma
  metadata: 16 genres
  contents: 25000 excerpts (30s)
  audio: 'yes'

FMA-large:
  url: https://github.com/mdeff/fma
  metadata: 161 genres
  contents: 106574 excerpts (30s)
  audio: 'yes'

FMA-full:
  url: https://github.com/mdeff/fma
  metadata: 161 genres
  contents: 106574 songs
  audio: 'yes'

Freesound-Loop-Dataset:
  url: https://zenodo.org/record/3967852
  metadata: tempo, key, instrumentation, genre
  contents: 3000 annotated loops, 9455 loops total
  audio: 'yes'


FSD-Kaggle2019:
  url: https://zenodo.org/record/3612637
  metadata: 80 tags
  contents: 29000 clips
  audio: 'yes'

Fugue:
  url: http://algomus.fr/data
  title: Fugue Analyses
  metadata:
    - fugue structure
    - patterns
    - cadences
  contents: 36 fugues (Bach & Shostakovich)
  audio: 'no'

GiantStepsTempo:
  url: https://github.com/GiantSteps/giantsteps-tempo-dataset
  metadata: tempo
  contents: 664 files
  audio: 'no'

GiantStepsTempo:alternate:
  url: http://www.tagtraum.com/download/schreiber_new_giantsteps_tempo.zip
  metadata: tempo
  contents: 664 files
  audio: 'no'

GiantStepsKey:
  url: https://github.com/GiantSteps/giantsteps-key-dataset
  metadata:
    - key
  contents: 604 files
  audio: 'no'

GNMID14:
  url: https://developer.gracenote.com/mid2014
  title: Gracenote Music Identification 2014
  metadata:
    - timestamp
    - country
  contents: 110M music ID matches
  audio: 'no'

GoodSounds:
  url: http://mtg.upf.edu/download/datasets/good-sounds
  metadata:
    - 12 instruments
    - pitch
    - sound quality
  contents: 8750 notes
  audio: 'yes'

GPT:
  url: http://mac.citi.sinica.edu.tw/GuitarTranscription
  metadata: 7 guitar playing techniques
  contents: 6580 clips
  audio: 'yes'

GMD:
  url: http://di.ionio.gr/hilab/gmd
  title: Greek Music Dataset
  metadata:
    - genre
    - valence
    - arousal
  contents: 1400 songs
  audio: 'downloadable'

GrooveMD:
  url: https://magenta.tensorflow.org/datasets/groove
  title: Groove MIDI Dataset
  metadata:
    - drummer/session id
    - drum timing
  contents: 1150 MIDI recordings
  audio: 'rendered'

ExpandedGrooveMD:
  url: https://g.co/magenta/e-gmd
  title: Expanded Groove MIDI Dataset
  metadata:
    - drummer/session id
    - drum timing
    - kit name
  contents: 45537 midi/audio pairs
  audio: 'rendered'

GSD:
  url: https://github.com/ashispati/GuitarSoloDetection/tree/master/Dataset
  title: Guitar Solo Dataset
  metadata: start/stop of guitar solos
  contents: 60 songs
  audio: 'no'

GTZAN:
  url: http://marsyas.info/downloads/datasets.html
  metadata:
    - 10 genres
    - tempo labels: http://www.marsyas.info/tempo/
    - key labels (lerch): https://github.com/alexanderlerch/data_set
    - key labels (li): http://visal.cs.cityu.edu.hk/downloads/#gtzankeys
    - beat/downbeat: http://anasynth.ircam.fr/home/media/GTZAN-rhythm
    - metrical levels: http://www.isophonics.net/content/metrical-structure-annotations-gtzan-dataset
  contents: 1000 excerpts (30s)
  audio: 'yes'

GuitarSet:
  url: https://guitarset.weebly.com/
  metadata:
    - midi
    - pitch
    - beat
    - chords
  contents: 360 guitar excerpts (30s) with hexaphonic audio
  audio: 'yes'
  
GZ_IsoTech:
  url: https://ccmusic-database.github.io/en/database/ccm.html#GZTech
  metadata: Guzheng
  contents: 2824
  audio: 'yes'

Hainsworth:
  url: http://www.marsyas.info/tempo/ # This seems wrong?
  metadata: tempo
  contents: 245 excerpts (60s)
  audio: 'yes'

HarmonixSet:
  url: https://github.com/urinieto/harmonixset
  metadata:
    - beats
    - downbeats
    - structure
  contents: 912 pop songs
  audio: 'no'
  
HED:
  url: http://coconuts-palm-lab.com/EH/HED.zip
  metadata:
    - emotion annotations
    - harmonisation and tempo arrangements
  contents: 4000 tracks with emotion annotations
  audio: 'yes'

HHDS:
  url: http://goo.gl/5Hu51y
  metadata:
    - multitrack
    - style
    - tempo
  contents: 18 songs
  audio: 'yes'

holzapfel:onset:
  url: https://kth.box.com/s/o151l3rqtglhmeszah06wmvpcmpat6w9
  metadata: onset times
  contents: 78 excerpts
  audio: 'yes'

homburg:
  url: http://www-ai.cs.uni-dortmund.de/audio.html
  metadata: 9 genres
  contents: 1889 excerpts (10s)
  audio: 'yes'
  
HookTheory:
  url: https://github.com/chrisdonahue/sheetsage
  metadata:
    - aligned melody and harmony annotations
  contents: 50 hours of aligned melody and harmony annotations
  audio: 'yes'

IADS:
  url: http://csea.phhp.ufl.edu/media/iadsmessage.html
  metadata:
    - valence & arousal
    - dominance
  contents: 111 sound snippets
  audio: 'yes'
  
IDMT-PIANO-MM:
  url: https://www.idmt.fraunhofer.de/en/publications/datasets/piano-mm.html
  metadata:
    - classical and jazz piano recordings
  contents: 432 piano recordings (around four hours)
  audio: 'yes'

IDMT-SMT-Bass:
  url: http://www.idmt.fraunhofer.de/en/business_units/smt/bass.html
  metadata: bass performance styles
  contents: 4300 excerpts
  audio: 'yes'

IDMT-SMT-Audio-Effects:
  url: http://www.idmt.fraunhofer.de/en/business_units/smt/audio_effects.html
  metadata: effects on bass and guitar notes
  contents: 55044 recordings
  audio: 'yes'

IDMT-SMT-Bass-SINGLE-TRACK:
  url: http://www.idmt.fraunhofer.de/en/business_units/smt/bass_lines.html
  metadata: style annotated bass lines
  contents: 17 bass lines (?)
  audio: 'yes'

IDMT-SMT-Drum:
  url: http://www.idmt.fraunhofer.de/en/business_units/smt/drums.html
  metadata:
    - onset times
    - perc. instruments
  contents: 518 files
  audio: 'yes'

IDMT-SMT-Guitar:
  url: http://www.idmt.fraunhofer.de/en/business_units/smt/guitar.html
  metadata: 9 guitar playing techniques
  contents: 4700+400 note events
  audio: 'yes'

IDMT-MT:
  url: https://www.jyu.fi/hytk/fi/laitokset/mutku/en/research/projects2/past-projects/coe/materials/Multitrack
  title: IDMT Multitrack
  metadata:
    - multitrack
    - style
  contents: 12 songs
  audio: 'yes'

iKala:
  url: http://mac.citi.sinica.edu.tw/ikala/
  metadata:
    - singing voice tracks
    - background tracks
  contents: 252 excerpts (30s)
  audio: 'yes'

INRIA:EuroVision:
  url: http://musicdata.gforge.inria.fr/structureAnnotation.html
  metadata: structure
  contents: 124 songs
  audio: 'no'

INRIA:Quaero:
  url: http://musicdata.gforge.inria.fr/structureAnnotation.html
  metadata: structure
  contents: 159 songs
  audio: 'no'

UIOWA:MIS:
  url: http://theremin.music.uiowa.edu/MIS.html
  metadata: single instrument notes
  contents: many
  audio: 'yes'

IRMAS:
  url: http://www.mtg.upf.edu/download/datasets/irmas
  metadata: 11 instruments
  contents: 2874 excerpts
  audio: 'yes'

ISMIR2004Genre:
  url: http://ismir2004.ismir.net/genre_contest/index.html
  metadata: 6 genres
  contents: 729 excerpts (30s)
  audio: 'yes'

ISMIR2004Tempo:
  url: http://mtg.upf.edu/ismir2004/contest/tempoContest/node6.html
  metadata: tempo
  contents: 465 excerpts (20s)
  audio: 'yes'

JAAH:
  url: https://github.com/MTG/JAAH
  title: Jazz Audio-Aligned Harmony Dataset
  metadata:
    - structure
    - key
    - chords
    - beats
  contents: 113 songs
  audio: 'no'

Jamendo-VAD:
  url: https://jobim.ofai.at/download/jamendo.tgz
  metadata: voice activity
  contents: 61+16+16 songs
  audio: 'yes'

JGDB:
  url: https://ccrma.stanford.edu/~jga/ismir2010/ismir2010.html
  metadata:
    - multitrack
    - MIDI
  contents: random generated excerpts
  audio: 'yes'

JKU-ScoFo:
  url: http://www.cp.jku.at/resources/2019_RLScoFo_TISMIR
  metadata:
    - audio
    - MIDI
  contents: 16 recordings
  audio: 'yes'

Jordan:Classical:
  url: http://jblsmith.github.io/projects/masters-thesis/
  metadata: structure
  contents: 15 pieces
  audio: 'yes'

Jordan:Jazz:
  url: http://jblsmith.github.io/projects/masters-thesis/
  metadata: structure
  contents: 15 pieces
  audio: 'yes'

JLSDD:
  url: https://github.com/ELVIS-Project/mass-duos-corpus-josquin-larue/tree/Methodologies-for-Creating-Symbolic-Music-Corpora
  title: Josquin La Rue Secure Duo Dataset
  metadata: symbolic scores
  contents: 77 duos (Josquin & La Rue)
  audio: 'no'

KUGDastgahi:
  url: https://phaidra.kug.ac.at/view/o:127195
  metadata: dastgahi music
  contents: 213 solo recordings by four professional musicians
  audio: 'audio'

LabROSA:APT:
  url: http://labrosa.ee.columbia.edu/projects/piano/
  metadata: MIDI
  contents: 29 piano excerpts
  audio: 'yes'

LabROSA:MIDI:
  url: http://labrosa.ee.columbia.edu/sounds/music/
  metadata:
    - audio
    - MIDI
  contents: 4 songs
  audio: 'yes'

last.fm:
  url: https://zenodo.org/record/6090214
  title: last.fm-1K and last.fm-360K
  metadata: user listening habits from last.fm
  contents: 992 users
  audio: 'no'

LIND:
  url: https://purl.stanford.edu/zy061bp9773
  title: Lyrical Influence Networks Dataset
  metadata: lyrics-based artist and genre graphs
  contents: 42802 artists/214 genres
  audio: 'no'

LFM-1b:
  url: http://www.cp.jku.at/datasets/LFM-1b
  metadata: listening habits
  contents: 120000 users
  audio: 'no'

LMD:
  url: https://colinraffel.com/projects/lmd/
  title: Lakh MIDI Dataset
  metadata:
    - MIDI
    - tempo: http://www.tagtraum.com/download/schreiber_tempo_cnn_ismir2018.zip
    - key: http://www.tagtraum.com/download/lmd-key.zip
  contents: 176581 MIDI files
  audio: 'no'

LMD - Latin:
  url: http://www.ppgia.pucpr.br/~silla/lmd/
  metadata: 10 genres
  contents: 3160 songs
  audio: 'no'
  
LocalifyMusicEvents-USA-2019:
  url: https://github.com/JimiLab/LocalifyMusicEventData
  metadata: 
    - music events
    - socioeconomic indicators
  contents: 308051 music events that took place in 2019 and from 1139 US cities
  audio: 'no'
  
Lyra:
  url: https://github.com/pxaris/lyra-dataset
  metadata: a dataset for Greek Traditional and Folk music that includes 1570 pieces
  contents: 1570 songs
  audio: 'yes'

M-DJCUE:
  url: https://github.com/MZehren/M-DJCUE
  metadata: cue points
  contents: 134 tracks
  audio: 'no'

MAESTRO:
  url: https://magenta.tensorflow.org/datasets/maestro
  metadata:
    - audio aligned midi
    - velocity
    - sustain
  contents: 172 hours of piano
  audio: 'yes'

magnatagatune:
  url: http://mirg.city.ac.uk/codeapps/the-magnatagatune-dataset
  metadata:
    - similarity
    - tags
  contents: 25863 excerpts (30s)
  audio: 'yes'

MAPS:
  url: http://www.tsi.telecom-paristech.fr/aao/en/2010/07/08/maps-database-a-piano-database-for-multipitch-estimation-and-automatic-transcription-of-music/
  metadata:
    - piano notes/chords/pieces
    - tempo/key: http://c4dm.eecs.qmul.ac.uk/ycart/a-maps.html
  contents: 238 pieces
  audio: 'yes'

MARD:
  url: http://mtg.upf.edu/download/datasets/mard
  metadata: album reviews
  contents: 66566 songs
  audio: 'no'

MARG-AMT:
  url: http://marg.snu.ac.kr/?page_id=767
  metadata:
    - MIDI pitch
    - onset/offset times
  contents: 30 melodies
  audio: 'yes'

MAST:
  url: https://github.com/barisbozkurt/MASTmelody_dataset
  metadata: vocal performance assessment
  contents: 1018 performances
  audio: 'no'

MAST-Rhythm:
  url: https://zenodo.org/record/2620357
  metadata: rhythm performance assessment
  contents: 3721 performances
  audio: 'yes'

McGill Billboard:
  url: http://ddmal.music.mcgill.ca/billboard
  metadata: chords
  contents: 740 songs
  audio: 'no'

MDBDrums:
  url: https://github.com/CarlSouthall/MDBDrums
  metadata:
    - onset times
    - perc. instrument
    - playing technique
  contents: 23 excerpts
  audio: 'yes'

MedleyDB:
  url: http://medleydb.weebly.com
  metadata:
    - multitrack
    - genre
    - melody f0
    - instrument activation
  contents: 122 songs
  audio: 'yes'

Medley-solos-DB:
   title: "Medley-solos-DB: a cross-collection dataset for musical instrument recognition"
   url: https://zenodo.org/record/2582103
   metadata: 8 instruments
   contents: 21572 excerpts
   audio: 'yes'

MeloSol:
  url: https://davidjohnbaker1.github.io/melosol/
  metadata:
    - melody
    - monophonic
    - symbolic
    - kern
    - key
  contents: 783 melodies
  audio: 'no'

MelonPlaylistDataset:
  url: https://mtg.github.io/melon-playlist-dataset/
  title: Melon Playlist Dataset
  metadata:
  - 148826 playlists
  - 30 genres, 219 subgenres
  - 30652 playlist tags
  contents: mel-spectrograms for 649091 songs (20-50s segments)
  audio: 'no'

MER500:
   url: https://www.kaggle.com/makvel/mer500
   metadata: emotion
   contents: 500 clips
   audio: 'yes'

MIR-1K:
  url: https://sites.google.com/site/unvoicedsoundseparation/mir-1k
  metadata:
    - vocal tracks
    - background tracks
  contents: 1000 excerpts
  audio: 'yes'

mirex05Train:
  url: http://labrosa.ee.columbia.edu/projects/melody/
  metadata: predominant pitch
  contents: 13 excerpts
  audio: 'yes'

mirex06Train:
  url: http://www.music-ir.org/mirex/wiki/2006:Audio_Tempo_Extraction#Practice_Data
  metadata:
    - tempo
    - beats
  contents: 20 excerpts (30s)
  audio: 'yes'

MMTD:
  url: http://www.cp.jku.at/datasets/MMTD/
  title: Million Musical Tweets
  metadata: listening behavior
  contents: 1086808 tweets
  audio: 'no'

Modal:
  url: https://github.com/johnglover/modal
  metadata: onset times
  contents: 71 snippets
  audio: 'yes'

MOODetector:Bi-Modal:
  url: https://github.com/johnglover/modal
  metadata:
    - lyrics
    - valence & arousal
  contents: 133 excerpts
  audio: 'yes'

MOODetector:Multi-Modal:
  url: https://github.com/johnglover/modal
  metadata:
    - lyrics
    - MIDI
    - mood
  contents: 903 excerpts (30s)
  audio: 'yes'

moodswings:
  url: http://music.ece.drexel.edu/research/emotion/moodswingsturk
  metadata: arousal & valence
  contents: 240 excerpts (30s)
  audio: 'no'

MLPMF:
  url: https://osf.io/5aupt
  title: Mid Level Perceptual Music Features
  metadata: 7 perceptual features
  contents: 5000 audio files
  audio: 'yes'

MozartStringQuartets:
    url: http://algomus.fr/data
    title: Mozart's String Quartets
    metadata:
      - structure
      - cadences
    contents: 32 movements
    audio: 'no'

MSMD:
  url: https://zenodo.org/record/2597505/
  title: Multimodal Sheet Music Dataset
  metadata:
    - piano notes/chords/pieces
    - synthetic audio
    - aligned MIDI
    - aligned sheet music images
    - OMR
  contents: 497 pieces
  audio: 'no'

MozartStringQuartets:
    url: http://algomus.fr/data
    title: Mozart's String Quartets
    metadata:
      - sonata from structure
      - cadences
    contents: 32 movements
    audio: 'no'

MSD:
  url: http://labrosa.ee.columbia.edu/millionsong/
  title: Million Song Dataset
  metadata:
    - metadata: http://www.tagtraum.com/msd_genre_datasets.html
    - proprietary features
  contents: 1000000 songs
  audio: 'no'

MTC:
  url: http://www.liederenbank.nl/mtc/
  title: The Meertens Tune Collections
  metadata:
    - phrases
    - key
    - meter
  contents: 18000 melodies
  audio: 'partially'

MTD:
  url: https://www.audiolabs-erlangen.de/resources/MIR/MTD
  title: A Multimodal Dataset of Musical Themes for MIR Research
  metadata:
    - sheet music
    - symbolic encodings
    - audio snippets
    - symbolic-audio alignments
    - composer, work, recording, and theme characteristics
  contents: 2067 Themes
  audio: 'yes'

MTG-Jamendo:
  url: https://mtg.github.io/mtg-jamendo-dataset/
  title: MTG-Jamendo
  metadata: tags (genre, instruments, mood)
  contents: 55000 tracks
  audio: 'yes'

MTG-QBH:
  url: http://mtg.upf.edu/download/datasets/mtg-qbh
  title: MTG-Query by Humming
  metadata:
    - title
    - artist
  contents: 118 queries/481 songs
  audio: 'yes/no'
  
MusAV:
  url: https://mtg.github.io/musav-dataset/
  metadata: arousal and valence
  contents: 2,092 track previews covering 1,404 genres, with pairwise relative AV judgments by 20 annotators
  audio: 'yes'

MusAV:
  url: https://mtg.github.io/musav-dataset/
  title: MusAV
  metadata:
    - arousal & valence (relative annotations)
  contents: 2092 excerpts (30s)
  audio: 'yes'

MUSDB18:
  url: https://sigsep.github.io/datasets/musdb.html
  metadata:
    - multitrack recordings
    - stems for vocals, drums, bass and accompaniment
  contents: 150 songs
  audio: 'yes'
  
musdb-XL:
  url: https://github.com/jeonchangbin49/musdb-XL
  metadata: source separation
  contents: musdb-XL is an eXtremely Loud version of musdb-hq evaluation dataset
  audio: 'yes'

MUSIC4ALL:
  url: https://sites.google.com/view/contact4music4all
  metadata:
    - tags
    - lyrics
  contents: 109,269 excerpts (30s)
  audio: 'on request'

MusicBench:
  url: https://huggingface.co/datasets/amaai-lab/MusicBench
  metadata:
    - Augmented MusicCaps
    - wav files
    - description
    - chords, beats, tempo, and key
  contents: 52,768 training and 400 test samples
  audio: 'yes'

musiclef2012:
  url: http://www.cp.jku.at/datasets/musiclef/index.html
  metadata: tags
  contents: 1355 songs
  audio: 'no'

MusicMicro:
  url: http://www.cp.jku.at/datasets/musicmicro/index.html
  metadata: music listening patterns
  contents: 136866 users
  audio: 'no'

MusicNet:
  url: https://homes.cs.washington.edu/~thickstn/musicnet.html
  metadata:
    - pitch
    - onsets
  contents: 330 recordings
  audio: implicitly

MuVi-Sync:
  title: Multi-modal Dataset of Music Video
  url: https://zenodo.org/records/10057093
  metadata:
    - chords / keys (music feature)
    - note density (music feature)
    - loudness (music feature)
    - semantic (video feature)
    - motion (video feature)
    - emotion (video feature)
    - scene offset (video feature)
  contents: 748 music videos
  audio: on request

NES-MDB:
  url: https://github.com/chrisdonahue/nesmdb
  metadata:
    - multi-track MIDI
    - aligned audio
  contents: 5000 songs
  audio: on request

NIN:
  url: http://ninremixes.com/8/multitracks.php
  title: Nine Inch Nails Multitracks
  metadata: multitrack
  contents: 66 songs
  audio: 'yes'

NMED-H:
  url: http://purl.stanford.edu/sd922db3535
  title: NMED-H - Naturalistic Music EEG Dataset Hindi
  metadata: EEG
  contents: 24 trials x 16 excerpts (4.5min)
  audio: 'no'

NMED-RP:
  title: Naturalistic Music EEG Dataset – Rhythm Pilot
  url: https://purl.stanford.edu/rz763kn3821
  metadata: EEG
  contents: 20 trials x 10 excerpts (4.5min)
  audio: 'no'

NMED-T:
  title: Naturalistic Music EEG Dataset - Tempo
  url: https://purl.stanford.edu/jn859kj8079
  metadata: EEG
  contents: 30 trials x 16 excerpts (30sec)
  audio: 'no'

NSynth:
  url: https://magenta.tensorflow.org/datasets/nsynth
  metadata:
    - instrument
    - pitch
  contents: 305979 single notes
  audio: 'yes'

NUS-48E:
  url: https://www.smcnus.org/nus-48e-sung-and-spoken-lyrics-corpus/
  metadata: aligned phonemes
  contents: 48 pairs of sung and spoken
  audio: 'yes'

ODB:
  url: http://grfia.dlsi.ua.es/cm/worklines/pertusa/onset/ODB/
  metadata: onset times
  contents: 19 excerpts
  audio: 'yes'

Onset_Leveau:
  url: http://www.tsi.telecom-paristech.fr/aao/en/2011/07/13/onset_leveau-a-database-for-onset-detection/
  metadata: onset times
  contents: 21 excerpts
  audio: 'yes'

OpenBMAT:
  url: https://zenodo.org/record/3381249
  title: Open Broadcast Media Audio from TV
  metadata: 6 classes for music presence
  contents: 1647 excerpts (60s)
  audio: 'yes'

OpenMIC-2018:
  url: https://github.com/cosmir/openmic-2018
  metadata: 20 instruments
  contents: 20000 excerpts (10s)
  audio: 'yes'

Orchset:
  url: http://mtg.upf.edu/download/datasets/orchset
  metadata: predominant pitch
  contents: 64 excerpts
  audio: 'yes'

Phenicx-Anechoic:
  url: http://mtg.upf.edu/download/datasets/phenicx-anechoic
  metadata:
    - multi-track audio (orchestral music)
    - aligned MIDI
  contents: 4 pieces
  audio: 'yes'

PGD:
  url: https://gitlab.doc.gold.ac.uk/expressive-musical-gestures/dataset/-/tree/master/piano
  title: Piano Gestures Dataset
  metadata:
    - video
    - intentions
    - audio
  contents: 210 clips
  audio: 'yes'

Phonation:
  url: https://osf.io/pa3ha
  metadata:
    - pitch
    - vowel
    - phonation mode
  contents: 900 monophonic snippets
  audio: 'yes'

PlaylistDataset:
  url: http://www.cs.cornell.edu/~shuochen/lme/data_page.html
  metadata: playlists
  contents: 75262 songs/2840553 transitions
  audio: 'no'

QBT-Extended:
  url: https://ccrma.stanford.edu/groups/qbtextended/index.html
  metadata: taps
  contents: 3365 queries/51 songs
  audio: MIDI

QMUL:Beatles:
  url: http://isophonics.net/content/reference-annotations-beatles
  metadata:
    - structure
    - key
    - chords
    - beats
  contents: 181 songs
  audio: 'no'

QMUL:King:
  url: http://isophonics.net/content/reference-annotations-carole-king
  metadata:
    - structure
    - key
    - chords
  contents: 14 songs
  audio: 'no'

QMUL:MichaelJackson:
  url: http://isophonics.net/content/reference-annotations-michael-jackson
  metadata: structure
  contents: 38 songs
  audio: 'no'

QMUL:MixEvaluation:
  url: http://c4dm.eecs.qmul.ac.uk/multitrack/MixEvaluation/
  metadata:
    - multitrack
    - mixes
  contents: 18 songs/180 mixes
  audio: 'yes'

QMUL:Queen:
  url: http://isophonics.net/content/reference-annotations-queen
  metadata:
    - structure
    - key
    - chords
  contents: 51/31 songs
  audio: 'no'

QMUL:RSS:
  url: http://c4dm.eecs.qmul.ac.uk/downloads/
  metadata: structure
  contents: 60 songs
  audio: 'no'

QMUL:Zweieck:
  url: http://isophonics.net/content/reference-annotations-zweieck
  metadata:
    - structure
    - key
    - chords
    - beats
  contents: 18 songs
  audio: 'no'

QUASI:
  url: http://www.tsi.telecom-paristech.fr/aao/en/2012/03/12/quasi/
  metadata: multitrack
  contents: 11 songs
  audio: 'yes'

RockCorpus:
  url: http://rockcorpus.midside.com
  metadata:
    - chords
    - melody
    - bars
  contents: 200 songs
  audio: 'no'

RWC:
  url: http://staff.aist.go.jp/m.goto/RWC-MDB/
  metadata:
    - lyrics
    - 10 genre
    - 50 instruments
    - chords: https://github.com/tmc323/Chord-Annotations
    - structure: http://musicdata.gforge.inria.fr/structureAnnotation.html
    - aligned MIDI: https://staff.aist.go.jp/m.goto/RWC-MDB/AIST-Annotation/SyncRWC/
  contents: 115 songs/50 classical/100 songs
  audio: 'yes'

SALAMI:
  url: http://ddmal.music.mcgill.ca/research/salami/annotations
  metadata: structure
  contents: 1447 songs
  audio: 'no'

SAMBASET:
  url: http://www02.smt.ufrj.br/~starel/sambaset/
  metadata:
    - recording date
    - escolas
    - beats
  contents: 392
  audio: 'no'

Sargon:
  url: https://github.com/urinieto/msaf-data/tree/cbf0ad50aa5c179c1ab7ac0f25031581f595847e/Sargon
  metadata: structure
  contents: 4 songs
  audio: 'yes'

Schenker:
  url: http://www.cs.rhodes.edu/~kirlinp/diss.html
  title: Schenker Anayses
  metadata:
    - MusicXML
    - Schenker analysis
  contents: 41 pieces
  audio: 'no'

SCP:
  title: SCP - EEG-Recorded Responses to Short Chord Progressions
  url: http://purl.stanford.edu/js383fs8244
  metadata: EEG
  contents: 108/648 trials x 12 stimuli (5s)
  audio: 'yes'

SDD:
  title: Sample detection dataset
  url: https://github.com/SiddGururani/sample_detection
  metadata: start of samples
  contents: 80 songs, 80 samples
  audio: 'no'

SEILS:
  url: https://github.com/SEILSdataset/SEILSdataset
  metadata: scores in different symbolic formats
  contents: 30 madrigals
  audio: 'no'

SASD:
  title: Semantic Artist Similarity
  url: http://mtg.upf.edu/download/datasets/semantic-similarity
  metadata:
    - artist biographies
    - similarity
  contents: 268+2336 artists
  audio: 'no'

Seyerlehner:1517-Artists:
  url: http://www.seyerlehner.info/index.php?p=1_3_Download
  metadata: 19 genres
  contents: 3180 songs
  audio: 'yes'

Seyerlehner:Annotated:
  url: http://www.seyerlehner.info/index.php?p=1_3_Download
  metadata: 19 genres
  contents: 190 songs
  audio: 'yes'

Seyerlehner:Pop:
  url: http://www.seyerlehner.info/index.php?p=1_3_Download
  metadata: tempo
  contents: 1105 songs
  audio: 'yes'

Seyerlehner:Unique:
  url: http://www.seyerlehner.info/index.php?p=1_3_Download
  metadata: 14 genres
  contents: 3115 excerpts (30s)
  audio: 'yes'

SHS100K:
  url: https://github.com/NovaFrost/SHS100K
  metadata: cover songs
  contents: ca. 10,000 songs with 100,000 tracks
  audio: 'no'

SISEC2013:
  url: http://sisec2011.wiki.irisa.fr/tiki-index165d.html?page=Professionally+produced+music+recordings
  metadata:
    - multitrack
    - mix
  contents: 5 excerpts
  audio: 'yes'

SLAKH:
  url: http://www.slakh.com/
  title: Synthesized Lakh Dataset (Slakh)
  metadata:
    - MIDI
    - audio
    - transcription
  contents: 2100 songs, midi files, 145 hours
  audio: 'yes'

SLAKH:
  url: http://www.slakh.com/
  metadata:
    - MIDI
    - synthesized audio (tracks + mix)
  contents: 2100 mixes
  audio: 'yes'

SMC:MIREX:
  url: http://smc.inescporto.pt/research/data-2/
  metadata:
    - tempo
    - beats
  contents: 217 excerpts
  audio: 'yes'

SMD:
  url: http://www.mpi-inf.mpg.de/resources/SMD/SMD_MIDI-Audio-Piano-Music.html
  metadata:
    - audio
    - aligned MIDI
  contents: 50 recordings
  audio: 'yes'

SongDescriberDataset:
  url: https://doi.org/10.5281/zenodo.10072001
  metadata: descriptive captions
  contents: 706 music recordings (2 min)
  audio: 'yes'

SongInterpretationDataset:
  url: https://zenodo.org/record/7019124#.Y5yxwux_pTY
  metadata: lyrics 
  contents: 27,834 songs (30 seconds each, recorded at 44.1 kHz)
  audio: 'yes'

SoundTracks:
  url: https://www.jyu.fi/hytk/fi/laitokset/mutku/en/research/projects2/past-projects/coe/materials/emotion/soundtracks/Index
  metadata:
    - valence
    - energy
    - tension
    - mood
  contents: 360+110 excerpts
  audio: 'yes'

SPAM:
  url: https://github.com/urinieto/msaf-data/tree/master/SPAM/references
  metadata: structure
  contents: 50 songs
  audio: 'no'

SRD-O:
  title: Shazam Research Dataset Offsets
  url: https://purl.stanford.edu/fj396zz8014
  metadata: in-song query times
  contents: 188M queries over 20 songs
  audio: 'no'

Su-AMT:
  url: https://sites.google.com/site/lisupage/research/new-methodology-of-building-polyphonic-datasets-for-amt
  metadata:
    - onset times
    - pitch
  contents: 10 excerpts
  audio: 'yes'

SUPRA-RW:
  url: https://supra.stanford.edu/download/
  metadata: piano roll performances
  contents: 478 performances
  audio: 'yes'

SWD:
  url: https://zenodo.org/record/4122060#.YPkxv-gzaUl
  title: Schubert Winterreise Dataset (SWD)
  metadata:
    - lyrics
    - scores (image, symbolic, MIDI)
    - audio
    - measures
    - chords, local keys, global keys, structure
  contents: 24 songs, 9 performances
  audio: 'yes'

SymbolicTextureMozartSonatas:
  url: https://gitlab.com/algomus.fr/algomus-data/tree/master/quartets/mozart
  metadata:
    - symbolic music
  contents: 9 movements of Mozart Piano Sonatas totaling a set of 1164 annotated measures
  audio: 'no'
  
SymphonyMIDI:
  url: https://symphonynet.github.io/
  metadata:
    - MIDI
    - symphonic
  contents: 46187 MIDI scores
  audio: 'no'
  
TextureStringQuartets:
  url: http://algomus.fr/data
  title: Texture in String Quartets
  metadata: texture
  contents: 11 movements
  audio: 'no'

TFD:
  title: Traditional Flute Dataset
  url: https://www.kaggle.com/jbraga/traditional-flute-dataset
  metadata:
    - audio
    - aligned MIDI
  contents: 30 excerpts
  audio: 'yes'

ThisIsMyJam:
  url: https://archive.org/details/thisismyjam-datadump
  metadata:
    - favorite songs
    - artists
  contents: 131k users
  audio: 'no'

TinySOL:
  url: https://zenodo.org/record/3632192
  title: TinySOL, an audio dataset of isolated musical notes
  metadata:
    - instrument
    - pitch
    - dynamics
    - string number (if applicable)
  contents: 2913 isolated notes
  audio: 'yes'

TONAS:
  url: http://mtg.upf.edu/download/datasets/tonas
  metadata: pitch
  contents: 72 single-voiced excerpts
  audio: 'yes'

TPD:
  title: Track Popularity
  url: http://mir.ilsp.gr/track_popularity.html
  metadata: popularity rating
  contents: 23385 songs
  audio: 'no'

Tunebot:
  url: http://music.cs.northwestern.edu/data/tunebot
  metadata:
    - title
    - artist
  contents: 10000 queries/? songs
  audio: yes/no

UMA-Piano:
  url: http://extras.springer.com/2013/978-1-4614-7475-3
  metadata: piano chords
  contents: 275040 recordings
  audio: 'yes'

UnmixDB:
  url: https://zenodo.org/record/1422385#.W7R5zxMzYWo
  metadata: DJ mix parameters
  contents: 37 playlists
  audio: 'yes'

UrbanSound8k:
  url: http://urbansounddataset.weebly.com/
  metadata: 10 event classes
  contents: 8732 slices
  audio: 'yes'

URBAN-SED:
  url: http://urbansed.weebly.com/
  metadata: 9 event classes
  contents: 10000 recordings
  audio: 'yes'

URMP:
  title: Multi-modal Music Performance
  url: http://www2.ece.rochester.edu/projects/air/projects/URMP.html
  metadata: score-aligned video and audio
  contents: 44 recordings
  audio: 'yes'

uspop2002:
  url: http://labrosa.ee.columbia.edu/projects/musicsim/uspop2002.html
  metadata:
    - tags
    - genre
    - chords: https://github.com/tmc323/Chord-Annotations
  contents: 8752 songs
  audio: 'no'
  
ViolinEtudesf0Estimation:
  url: https://zenodo.org/record/6564408#.Y52slux_pTZ
  metadata: f0 estimation for Violin Etudes
  contents: 27.8-hours violin performance
  audio: 'yes'

VGD:
  url: https://gitlab.doc.gold.ac.uk/expressive-musical-gestures/dataset/-/tree/master/violin
  title: Violin Gestures Dataset
  metadata:
    - EMG
    - playing techniques
    - audio
  contents: 960 recordings
  audio: 'yes'

VocalSet:
  url: https://zenodo.org/record/1442513#.W7OaFBNKjx4
  title: VocalSet
  metadata: 17 vocal techniques
  contents: 3560 recordings
  audio: 'yes'

RobbieWilliamsAnnotations:
  url: http://ispg.deib.polimi.it/mir-software.html
  metadata:
    - chords
    - keys
    - beats
  contents: 65 songs
  audio: 'no'
  
YM2413-MDB:
  url: https://github.com/jech2/YM2413-MDB
  metadata: 
    - retro video game symbolic music dataset with emotion annotations
    - ismir 2022
  contents: 669 songs
  audio: 'no'
  
YousicianUkulele:
  url: https://yousician.com/open-data
  metadata: evaluated notes and chords
  contents: 500000 exercises by 1000 users
  audio: 'no'