I had a good laugh, I can't sing. Stuck on Get ready. Was there something that was supposed to happen after that? Anyway, play/pause button is too high up, I was looking for it at the bottom of the screen. I like the UI.

This is very fun. Having just tried it with my maybe tone deaf partner, she showed progress when she sang at the same time as the notes. It might be good if there was like a faster looped version where the notes would play more frequently.