MIDI
Writableaudio
A format that utilizes the cxcal Instrument Digital Interface (MIDI) protocol to record, store, and read sound event instructions such as pitch, tempo, velocity, and sustain. As the file does not contain actual recorded audio, the file size is greatly reduced.
Identify it
| Extensions | .mid.midi |
|---|---|
| MIME types | audio/midiaudio/midaudio/x-midiaudio/mapplication/x-midi |
| Signatures | 4d5468640000000600 at byte 0 (MIDI Audio) |
| PRONOM | x-fmt/230 |
| Wikidata | Q80535Q10610388 |
| Library of Congress | fdd000102fdd000119 |
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Open it
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And 36 more in the JSON record.
Convert it
No conversion recorded. One of the tools above may export it; search for a chain.
Documentation
- kaitai grammar: https://github.com/kaitai-io/kaitai_struct_formats/blob/master/media/standard_midi_file.ksy
Sources
From Just Solve the File Format Problem (File Formats Wiki), Kaitai Struct format gallery, PRONOM, Wikidata. Updated 2026-10-24.