Read about Jimmie Bones in winter 2013 issue of Yamaha All Access magazine which features Yamaha artists. Besides his vintage Hammond B-3 and Leslie Jimmie Bones' touring rig includes the Yamaha CP-4 Stage Piano and the Yamaha Motif Workstation.
http://www.yamaha.com/allaccess/artists/issue24-jimmie_bones_trombly.asp?issue=issue24