Hi All I'm very new to playing jazz and I've got a question or two about creating a walking bass line for "Milestones." (I have been studying in "Building Walking Basslines by Ed Friedland.) I know the tune is in G Dorian. My lead sheet shows the progression like this: Gm7 (Am7) (Bbmaj7) (Am7). I assume that the parentheses mean that the chord changes are implied, but not explicit? Do I need to follow all these changes in building my line, or can I just walk on the Gm7 through the whole progression? Also when walking on a single chord for more than 1 measure do you HAVE to come back to the root on the 1 beat of EVERY measure? Any help would be much appreciated. I need to come up with something pretty quick. Thanks!