Hi there...I came up with a chord progression that I think is nice. I tried then to play different scales over it. It was CM7, FM7, G, CM9, F, G. I played A pent. blues, D Dorian and A minor, and they all sounded good, especially the blues scale. My question is: it there a rule for choosing a scale to be played over a particular chord? I read some articles over the Web, and they made things very tough to me. I heard a lot in the pase threads the words 'trust your ear' and 'the rule is that there are no rules'. I respect these opinions, but I wanted to know some rules that can help a newbe like me. Sorry for the headache and thanks :)