Answer by
ShanL (684)
Some greats are Billy Preston (studio musician for the Beatles, also had a solo career), Steve Winwood (several bands, including Traffic, plus solo career), Gregg Allman (Allman Brothers Band), David Bryan (Bon Jovi), Dennis DeYoung (Styx), Ray Manzarek (The Doors) and most of the keyboardists who have played for Yes and Supertramp in their changing line-ups (Rick Wakeman, Rick Davies).