There's already a weird RPG music game out there. It's called Sequence and while I have it, I haven't tried it yet. A lot of people said it was pretty good though. My point is, she clearly saw Sequence, figure "eh, this is okay, but it's not starring my Mary Sue..."
I swear, she and Imari need to hook up. Their wedding vows would be excerpts from their Totally Awesome Best Game Ever pitch bibles.