Zed, lots of rock bands, especially during the 70's, used Hammond B3's, with Leslie speakers. now, they're coming back in vogue, but they are a bear to lug around! Keith Emerson of Emerson, Lake, and Palmer was one famous B3 user.
in a Leslie speaker cabinet, the horn speaker actually rotated, giving it it's distinctive sound.

http://b3world.com/leslie.html


formerly known as etaoin...