I feel stupid having to ask this, but... we all have to learn sometime. I'm starting to really get into "playing" jazz - more eclectic stuff, like Bitches Brew and weirder modern stuff like Old time Relijun. What I'm wonder is, when you are playing 7ths, for example, as part of your bass line, are you adding them up high? Or using the notes, but lower... For example, your guitarist etc is playing a Cmin7. You want to include the 7th. Assuming you're playing C on the A string, are you reaching up to the G, or hitting it along the E string (I'm afraid to say the notes, I might be wrong, but...) at the 6th fret? (I believe A# would be the 7th in a C chord) In the same vein, I'm really liking hitting the lower 4th (low F for a C) instead of higher on the D string where I would normally play a 5th. That seems to happen a lot in the stuff I've been listening to. It seems like the old cats really did know there's no money to be made above the 5th fret! It amazes me sometimes when I realize that every single note can be played on just those 2 strings and 4 frets!