Do any of the paid versions of these help to teach you in anyway? I know they show the finger placements of the chords, which is cool but I'd really like it if an app like g-tar would play a sample of the song for you. For example, it will put the chords out there for you and then you can either strum all strings or pick single ones. However, being tone dead like I am I don't know when to move from one chord to the other. If it walked through it then I could follow along and learn the song that way. I'm not good at "playing by ear". But I can play Simon and hit the colored buttons in the right sequence