I jam a lot with a couple of guitarists, and they will usually throw out some chord progessions for us to jam over. I can't for the life of me figure out the best way to play over the chords to create a fluid good sounding bass line. I seem to default to the roots. I know a decent enough amount of theory to be able to know what notes make up the individual chords, but I am not very good at picking the right time to use them. Should I try to always play the root on the first beat of the chord? I feel like I am always playing catch up and whenever I try to expand outside of the root, I just play the same boring chord arpeggios and don't seem to easily flow into the next chord. I notice that I am able to come up with decent bass lines when I am at home and don't think about chords or any sort of progession, but when there is a progession it is much harder for me to create something rhythmically interetings that connects and outlines the chords well. I need help!