Ted
Once you get the hang of it the Bk9 is very editable and not hard at all. I have also found that editing the OnBoard Styles seems to sound better than editing older imported ones but I don't know why. Moved my BK7M Styles right over with no problem. Wish I still had the BK7M for my DP.
I also have those Roland apps but never bother using them as I know my way around now. Haredest thing was doing the OT preformances and now I think "What was so hard in the beginnig" I do 4 for every Style.
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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