one more question on scales-having trouble understanding what notes you can play in a certain key.If you look at the notes on an E major scale,then on an E pentatonic,then on an E blues scale there are many different notes you can play in the key of E. Does this mean that when you are improvising for a lead that you can use any of these notes in a lead, or do you have to keep your lead just in the major scale, or blues scale, or pentatonic? It seems if you are using a major scale and then throw in a blues note that is in the same key it just seems out of key. Know what I mean? Thanks for the help