diff --git a/beets/dbcore/types.py b/beets/dbcore/types.py
index 935d03870a..e08b417a74 100644
--- a/beets/dbcore/types.py
+++ b/beets/dbcore/types.py
@@ -173,14 +173,17 @@ def __init__(self, primary=True):
 
 
 class Float(Type):
-    """A basic floating-point type.
+    """A basic floating-point type. Supports padding.
     """
     sql = u'REAL'
     query = query.NumericQuery
     model_type = float
 
+    def __init__(self, digits=1):
+        self.digits = digits
+
     def format(self, value):
-        return u'{0:.1f}'.format(value or 0.0)
+        return u'{0:.{1}f}'.format(value or 0, self.digits)
 
 
 class NullFloat(Float):
diff --git a/beetsplug/acousticbrainz.py b/beetsplug/acousticbrainz.py
index f4960c301e..01f3ac6acf 100644
--- a/beetsplug/acousticbrainz.py
+++ b/beetsplug/acousticbrainz.py
@@ -17,10 +17,12 @@
 """
 from __future__ import division, absolute_import, print_function
 
+from collections import defaultdict
+
 import requests
 
-from collections import defaultdict
 from beets import plugins, ui
+from beets.dbcore import types
 
 ACOUSTIC_BASE = "https://acousticbrainz.org/"
 LEVELS = ["/low-level", "/high-level"]
@@ -104,6 +106,29 @@
 
 
 class AcousticPlugin(plugins.BeetsPlugin):
+    item_types = {
+        'average_loudness': types.Float(6),
+        'chords_changes_rate': types.Float(6),
+        'chords_key': types.STRING,
+        'chords_number_rate': types.Float(6),
+        'chords_scale': types.STRING,
+        'danceable': types.Float(6),
+        'gender': types.STRING,
+        'genre_rosamerica': types.STRING,
+        'initial_key': types.STRING,
+        'key_strength': types.Float(6),
+        'mood_acoustic': types.Float(6),
+        'mood_aggressive': types.Float(6),
+        'mood_electronic': types.Float(6),
+        'mood_happy': types.Float(6),
+        'mood_party': types.Float(6),
+        'mood_relaxed': types.Float(6),
+        'mood_sad': types.Float(6),
+        'rhythm': types.Float(6),
+        'tonal': types.Float(6),
+        'voice_instrumental': types.STRING,
+    }
+
     def __init__(self):
         super(AcousticPlugin, self).__init__()