If it could call up the matching "Preformance" associated with the lead sheet that would be amazing for live work. Less button pushing and more playing.
How bout it Fran, tell us more, and more about the rumored BK7 you mentioned.

Bill in NJ
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Bill in SC --- Roland BK9 (2) Roland BK7M, Roland PK5 Pedals, Roland FP90, Roland CM30 (2), JBL Eon Ones (2) JBL 610 Monitor, Behringer Sub, EV mics, Apple iPad (2) Behringer DJ mixer