Testing a free browser practice app for e-drums - looking for blunt feedback

I’m testing MeshBeat, a free browser practice app for electronic drums:

https://meshbeat.com/songs?utm_source=reddit&utm_medium=community&utm_campaign=usefulness_validation&utm_content=edrums_wave2

It runs in Chrome. You can pick a song, preview the drum chart, or connect a USB MIDI kit for timing feedback. No install and no account required for the basic practice path.

This is still a beta catalog, not official sheet music. I’m trying to validate whether the play surface is useful enough before building more around it.

If you have a few minutes, I’d love blunt feedback on one song:

• Could you find something you wanted to try?
• Did Preview make the chart understandable?
• If you used an e-kit, did MIDI connect cleanly?
• What was the first confusing or annoying moment?

I’m especially interested in chart quality and MIDI setup failures.