Hi ............ The short answer to the question is, yes. The original 750, next generation 750B which added divided expression and a crescendo pedal additional keyers, etc., and as memory serves there was also a 750C. Bill Hesterman ____________________________________________________________________ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Download free music by Clay Baker at: http://www.frogmusic.com/JoyfulPostlude.html To unsubscribe or set to vacation, go to www.frogmusic.com/rodgersmem.html If you have any difficulty with this or PayPal, please contact noeljones@xxxxxxxxxxxxx for help!