I self-studying classical guitar from a book. In this book, most exercises have an accompaniment which is meant to be played by the instructor. Since I don't have a teacher, what I've been doing so far is either ignoring the accompaniment, or manually copying it into some software which will play it. However, this is pretty slow and tedious. Is there a free software which will accept a picture or scan of the sheet music, understand it, and play it? Thank you very much.