Maybe I am jumping ahead on the music theory stuff, but help me out:
If I am playing a song in the key of G for example, does that mean I will only find the notes in the G key sentence in the song? so I will not see an A flat?
Next if a song is in the key of F and I want to play it in the key of G, I have to change the notes right? If so do they all move up, down, sideways? Help!