Originally Posted by boo boo

The greatest by genre.

R&B: James Jamerson
Fusion: Jaco Pastorius
Funk: Bootsy Collins
Blues: Willie Dixon
Jazz: Charles Mingus
Country: Bob Moore
Hard Rock: John Entwistle
Metal: Cliff Burton... Or maybe Steve Harris
Punk: Mike Watt
Prog: Chris Squire

Greatest period: James Jamerson.