I was just going to post about Bettas and music until I saw this thread.
Today, when I got back from work, I started to play my guitar, which I haven't done in a while. I noticed that Lex got super excited when I started playing... at least I hope it was excitement and not him going crazy or mad at me. At one point I started to play a lullaby and he actually went towards his sleeping spot and stayed still for a few seconds, until I messed up. I thought it was pretty funny and cute. I haven't played music from computer, so I don't know how he would respond to the different type of music yet. I hope we enjoy the same genre. haha