I seem to have a little problem in that area. \: Say I have a chord progression and I want to play a repetitive groove to accompany other instruments. 1. Should the groove be Chordal or more Diantonic? I mean, should I change the line (at least in pitch) when the chord changes, or should I play the same exact line the whole length of the song? 2. If I chose to change it, playing the root on the 1 sounds a bit too obvious to me. What other path may I take to make the change sound more diatonic? Is there such a path, or should that be done harmonically? What Herbie did on Chameleon I can pretty much Understand, but that's a 2 chord song.. what about songs more harmonically complex? The main problem I have is choise of notes. I would like to think I can come up with an interesting groove rhythmically, but it's mainly made of 1 and 5's.. \: Your help will leave me forever in your debt.