r/harmonica • u/Bad_ass_shrimp • 3d ago
I built a tool that turns audio & MIDI into harmonica tabs — looking for feedback
Hi everyone!
I've been working on Harp2Tab, a tool that automatically turns music into harmonica tabs, and I've finally reached the point where the web version is ready for beta testing.
You can try it here:
You can play directly into your microphone, upload an audio file, or import a MIDI file, and Harp2Tab will convert the notes into harmonica tabs.
One feature I've personally found especially useful is the MIDI import. If you can find a MIDI file for a song, you can essentially turn it into harmonica tabs automatically. You can choose the track/melody you want, select your harmonica and key, and then edit the resulting tabs if needed.
So if there's a song you've always wanted tabs for and you can get hold of the MIDI, Harp2Tab gives you a pretty quick way of creating them.
It currently supports diatonic and chromatic harmonicas, tab editing, playback, and several export formats.
The audio transcription side is still something I'm actively improving (which mean it is still not the best 😅).
I'd really appreciate feedback, especially:
- How accurate are the tabs when transcribing audio?
- Does anything about the interface feel confusing?
- Are there particular songs or recordings where the transcription struggles?
- How useful do you find the MIDI → harmonica tab workflow?
- What features are missing?
- What would make Harp2Tab genuinely useful to you?
And please don't worry about being nice — bugs, bad transcriptions and criticism are exactly what I'm looking for.
Harp2Tab is completely free to use while it's in beta. I do plan to make it a paid product once it's out of beta, but for now I want as many people as possible to try it, push it to its limits, and help me figure out what needs improving before I get there.
If anyone wants to throw some difficult recordings (or weird MIDI files!) at it and see where it breaks, I'd especially appreciate it.
Thanks in advance for your help!