You should not encounter any problems. And, if you will be using the new keyboard at church, then all the old voices are in there, under the category of legacy voices.

Good luck,

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)