There's a song converter that converts music to Etude's format from several others (Sibelius, MusicXML, Lilypond, etc).

It's an internal tool now that just runs on the command line.

But there will be an interface exposed in the coming months so that people can convert music for their own use and also publish to the store.

(I worked on Finale back in the mid 90's).

Hey, I'd love to get in touch with you and pick your brain about that if possible! Thanks!

Sure, jon.gilkison@gmail.com