Some early ideas: Dynamics exercises. Capture amplitude changes, so users can practice crescendos when using acoustic guitars. Solve the reverse problem, but

Some early ideas: Dynamics exercises. Capture amplitude changes, so users can practice crescendos when using acoustic guitars. Solve the reverse problem, but for singing. Given a song, extract it's melody and replay as a karaoke with scores. Guitar Pro compatibility is more important than you think. You'll probably have to differentiate yourself from Yousician. Cheers.