Well, MIDI files don't express much of the original musical intent very clearly. Things like dynamics, repeats, accents, staff positions, and lots(!) more are boiled down in a MIDI file to a simple list of exact times when a note should be struck and not much else.
MusicXML is actually a much newer format, but it was designed for compatibility between all the major music editing apps and it contains all of that original musical intent. So at the very least, the sheet music will be able to look much nicer in Synthesia with that kind of file. Think of it like a "MIDI+extra" format. If we're going to partner up with a music provider, it seems like it would be worth the extra effort to get that additional information.
No release date yet for Synthesia 11. The
roadmap post is the place to keep an eye on. We've been slowly releasing bits of 11 as they've been finished. For example, the 10.6 release will be another of the milestones leading toward 11.
hannibal wrote:Congratulate your wife, the support is not the best part of the work at all
You are not kidding!
These days I spend more time on support (even after all her help) than I do on development!