Maybe a bit off base of the thread but I use my FP90 pianos to just play with no accompiament or vocals. Back to basics training of playing with two hands and thinking more of harmonies and melody lines.
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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