Pianoify publishes a public MuScriptor audio-to-MIDI transcription instance
Hacker News opinions
This uses Kyutai's MuScriptor, described in its release post as an open multi-instrument transcription model built with Mirelo. It takes recordings across genres and produces MIDI notes for every instrument without needing the instrument list first.
I tried Lotus's "Shimmer and Out," a simple guitar-triad intro that Chordify has mangled for me before. This transcription sounded 1:1 to my ear, and I could use it for learning music or note-level theory analysis.
This public instance is not using MuScriptor's most powerful variant. I'd use the Mirelo API for that version, or self-host it on a GPU.
I tested the whole intro to "In the End," and it transcribed it perfectly for me.
The Pianoify source code is on GitHub at github.com/jerryzhou196/pianoify.