| Bit 0 | Bit 1 | Bit 2 | Bit 3 | Bit 4 | Bit 5 | Bit 6 | Bit 7 |
|---|---|---|---|---|---|---|---|
| LSB | X | X | X | X | X | X | MSB |
Status byte are different from Data byte by LSB:
- 1 - means Status
- 0 - means Data
| 1 | S | S | S | C | C | C | C |
|---|
MIDI has 16 channels (4 bits of channel number gives 16 combinations): 0 - 15
| Name | Status number (SSS value) | Data byte 0 meaning | Data byte 1 meaning |
|---|---|---|---|
| Note on | 0x9n | Note pitch | Velocity (0 - means note off) |
| Note off | 0x8n | Note pitch | Velocity (note release velocity) |
| Pitch controll | 0xEn | Pitch low 7 bits | Pitch high 7 bits |
| Controll change | 0xBn | Control lnumber | Controll value |
| Instrument select | 0xCn | Instrument number | Missed |
Note: n - channel number (0 - F)
Midi has 9 nostly used controlls:
| Controll name | Controll number | Description |
|---|---|---|
| Sound bank selection MSB | 0 | |
| Sound bank selection LSB | 32 | |
| Modulation (Vibrato, Tremolo) | 1 | Sets vibrato value |
| Volume | 7 | Sets volume level |
| Panoramic | 10 | Sets position of sound source to listener |
| Expression | 11 | Like high resolution volume controll. It can be 7 or 14(controll #43 used as MSB) bit resolution p = 14 or 7 (bits) |
| Sustain | 64 | Controlls sustain 0 - no sustain > 0 - sustain on |
| All controllers off | 121 | Clears all controllers values (sets to default values) |
| All notes off | 123 | Sets all notes to off |