Wanted features: (1) a way to preview the original MIDI again from a share link like this so I could still compare. Searching "ABBA Gimme Gimme Gimme" found one with the title "ABBA Gimme Gimme Gimme L" so I can't be 100% sure it's the same. And (2) a seekbar for the preview as well.

Kinda weird that search results seem hard-capped at 5. I guess it keeps things simple.