What guest musician that was featured in Derek Sherinian's albums won the "Best Rock Bass Player" readers' poll from "Guitar Player" magazine five times for his "lead bass" playing style?
Derek Sherinian:  He has released seven solo albums that have featured a variety of prominent guest musicians, including guitarists Slash, Yngwie Malmsteen, Allan Holdsworth, Steve Lukather, Joe Bonamassa, Billy Sheehan, Zakk Wylde and Al Di Meola.
i don't know