I do this every now and again and just thought I'd share it with everyone. I set a metronome (I'm glad Jeff's gone) to the slowest speed and just play a G sharp and an A over and over and over and over. I do as much as I can possibly do with the 2 notes and after about 10 minutes it can start to become a lot of fun. I try to accent a different beat each measure, go from quarter to eighth to sixteenths to triplets to whatever I can handle. I try to meditate on a steady pulse using the g sharp as a pickup note for each measure. I try to do anything and everything imaginable and concentrate on making every single note sing, whether I'm pulling it with everything I've got or touching it as though my fingers were feathers. Izzz fun and I think it really helps my feel, my timing, and my ability to really groove inside the pocket. Yeah baby!!!!! I love bass.