Stem01
Choose the clearest source
Start with the recording that isolates the part you want. A close recording of one instrument usually gives clearer note attacks than a room recording. If you only have a longer take, trim one phrase and retain a little silence before the first attack.
02
Convert and check the notes
Choose a browser-readable MP3, WAV, or M4A clip, up to 60 seconds and 25 MiB. Start the conversion and compare the shape and timing of the piano roll with what you hear. Download the MIDI once the outline looks right.
03
Use the recording as your reference
Place the audio and MIDI on separate tracks. The MIDI captures approximate note timing, pitch, length and velocity on one track. Choose a new instrument or correct individual notes while keeping the audio nearby for reference.