This app is so cool, fun and user friendly. I'm a 20 year bass guitar and lead guitar player, and drummer as well. And I've played all all three in various bands over the years as well as recorded, and I still do. But I have the gift of playing by ear. Every time I make the attempt to teach myself to read music and actually learn the notes that I've been playing, I stop after a couple of lessons because I lose interest. But not with this app. I can't wait to get to the next lesson !!!!! It's fun and at the same time you're learning. I have seen an improvement in my music writing with the guitar, as well as more confident chording when playing in clean and acoustic modes.