I don’t know what a .webp file is but I don’t like it. They’re like a filthy prank version of the image/gif you’re looking for. They make you jump through all these hoops to find the original versions of the files that you can actually do anything with.
Oh, I forgot to mention in my other comment, as far as compression goes, what ever happened to good old MIDI? 🤔
Midi is quite literally a text format, and you can open it in anything. It’s just a matter of interpretation what comes out of it.