Transcribes the song, not the stem
Free converters want clean, solo recordings. Ohms Score splits a real mix into vocals, bass, drums, and the rest first, then transcribes each part on its own — so dense, real-world songs come out as separate, readable tracks.
It writes down what it hears — and only that
Every note, hit, and chord carries a confidence. Parts that can't be heard clearly are skipped and labeled, never invented. If the drums are too ambiguous to trust, it says so instead of guessing.
No upload, no account, no waiting room
Both analysis engines ship inside the app. No cloud queue, no subscription meter, no network access at all. Your music, your transcription, your Mac.
Vocals, drums, bass, and everything else split locally before a single note is read. Export the stems themselves as WAV if that's all you need.
Each melodic stem becomes a piano-roll track of real note events — pitch, timing, length, and velocity — that you can inspect before export.
Drum hits are detected from the drum stem and written to the General MIDI drum channel, quantized to the song's own beat grid. Ambiguous hits are omitted and counted, not guessed.
Chords are read from the bass and harmony stems with the vocals and drums out of the way, alongside the song's key, tempo, and beat grid — each with visible confidence.
Export one standard MIDI file with a named track per part and drums on channel 10, ready for any DAW — plus a plain-text or ChordPro chord chart of your song.