Notation editor built on VexFlow 5

[nth-chile]

Hey all — sharing what I've been building on VexFlow 5: a free, open-source music notation editor that runs on desktop + browser.

Why? The pro tools (Dorico/Sibelius/Finale) are expensive and the existing free options iterate slowly. This is on a modern web stack so I can ship features fast.

Try it: https://app.nubium.rocks

• MusicXML in/out, MIDI input, guitar tabs, multi-voice
• Plugin architecture — disable what you don't want, find or build plugins for what you do
• AI editing plugin: an agent drives the app through the same command/plugin API humans use, so it can do anything you can do. BYO API key.

Heads up — solo-built and mostly tested by me. I've worn smooth the paths I personally use; other workflows likely have rough edges I haven't hit. Bug reports welcome.

Would love feedback from people who know VexFlow — especially on rendering edge cases or anywhere I'm fighting the API.

[0xfe]

Looks great. Would be great if there's some basic instructions on how to use it, and also some demo scores.

[nth-chile]

Thanks - my friend had the same feedback, I think there are a few ways to go about it ... I'll address that