Indeed Web MIDI doesn't work on Firefox, for example. But I was under the impression that the webviews Tauri uses are all chromium based.

Regardless, it was just curiosity on my part - the approach you chose not only is cross-platform now, but also future proof.

Hopefully! I haven't done the tests but I think you're right. It would support WebMIDI out of the box and you could use webmidi or some other framework on top of it