X-Translate Brings Real Time Audio-to-MIDI to Live 11 - Attack Magazine
App For Polyphonic Audio to MIDI Conversion - iPad Music Production Blog - Music app reviews, news and tutorials
GitHub - BShakhovsky/PianoAudioToMidi: This is static lib for Piano Transcription app. Transcribes polyphonic piano pieces from audio (MP3, WAV, etc.) into MIDI-files