Here is "Good Times Bad Times" by Led Zeppelin 1st riff g 7 7 d 7 7 4 5 7 a 7 7 x xx xx 5 4 5 6 7 e The chorus progressions are |A|/|B|/| and JP Jones is playing root-flat 7th-fourth over each measure. For example, the A measure would be| a 5 5 | e 5 5 5 3 5 the 1st bass solo is d 9 8 7 7 a 7 9 9 9 8 7 5 e 7 and the 2nd bass solo is g 7 :| repeat x4 d 7h 9h :|