I'm looking for some suggestions for a walking bass line to a 12 bar blues, especially the first four bars. I want to play the root on the first beat of each bar. My first attempt was to arpeggiate: 1 3 5 7 | 8 7 5 3 | 1 3 5 7 | 8 7 6 5 which leads nicely to the IV chord. This line gets the job done but isn't very jazzy. (I'm looking for a jazzier bass line.) Any suggestions will be greatly appreciated.