I have to say I am disappointed in this app now. I've had it for about 7 years and I paid for the full version then, and now after 7 years I need to pay for the blues styles? That used to be included. I have overlooked the fact that the guitar sounds are terrible and so are the rock styles, but now having to pay for the blues styles, it's really just ridiculous. If you want to charge people who are new to the app fine, but not people who have been using it all along and paid for it.