Audio to MIDI Converter

MIDI is a performance format — it captures notes, timing, and velocity but not visual notation. MusicXML is a notation format that describes how to render sheet music (beams, slurs, key signatures). AIFlowMusic exports both: use MIDI for DAW work, MusicXML for notation software like MuseScore, Sibelius, or Finale.

Basic-pitch (Spotify Research, 2022) is open-source, runs efficiently on Vercel's Fluid Compute, and handles both monophonic and polyphonic audio in one model. Onsets-and-Frames is piano-specific. MT3 is more accurate on certain instruments but roughly 10x slower and requires a GPU. For a free, instant-conversion tool, basic-pitch is the right tradeoff.

Yes — basic-pitch detects polyphony, so chords arrive as simultaneous note-on events in the output MIDI. You can split them into individual notes or treat them as a chord block in your DAW. For best chord accuracy, use stems rather than full mixes.

Drag the .mid file from Finder or Explorer into Ableton's Session view. It creates a new MIDI track with all notes preserved. Assign an instrument plugin (Operator, Wavetable, or any VST) to play the MIDI.

File → Open and select the .mid. Logic creates a project with each MIDI channel as a track. Alternatively, drag the .mid into an existing project's tracks area.

Conversion runs at roughly 8x real-time on Vercel's Node.js runtime — a 10-minute file takes about 75 seconds. Files over 5 minutes show a progress indicator. Creator and Producer plans run on prioritized workers.

Yes. Both accept .mid files directly. For better notation results — correct key signatures and beam grouping — use the MusicXML export instead.

Uploaded audio is processed in memory and deleted within 24 hours. The resulting .mid stays in your account so you can re-download. Free tier processes but doesn't persist; Creator and Producer plans keep outputs for 30 days.