I love Mark King (Thunderthumbs), Marcus (the accent guy), Les Claypool, the incomparable Larry Graham, etc. There are transcriptions of Mark King's bass lines, a 5 volume set now condensed to one book at bassbooks.com. When tastefully done, it is marvelous the musical havoc a talented player can create. There are others that are awesome that I have on the tip of my tongue, and there are a variety of videos and books to study from. Still nothing beats a live teacher. Aaaahhhh Grasshopper!
No matter what style of music, we can never forget the groove.