Thank you to everyone for your responses about the EXR volume pedal hookup.
Fran, I will be looking into the Midi Pocket controllers. Don't know much about them as yet. If this works......I'd be very happy. Thanks for your offer, I might take you up on it.
UTILITY doesn't have the options for pedals, but the KEYBOARD SET page does. It has several options there for pedal adjustments, but none for Volume.
I wouldn't be so unwise to compare the G70 to the EXR 7s. It's apples & oranges, but the weight of the G70 precluded me from continuing to use it. Surprisingly, the EXR has many fine features, good price, easy transporting, and great Roland sounds and features.......all of which I'm familiar with having used Roland arrangers since the mid 90's. Ya gotta do what you gotta do!
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Marie A.
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Marie A.