I use the SD2 with an Axiom 61, or Roland Edirol PC 80 controller KB. A simple bank and program change brings up any voice. However, when I try and use my Muse Receptor with the SD2, I can't get the SD2 to mute, except turning it off. I, also, find it good with a pc, as a multitimbral module.
Bernie
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pa4X 76 ,SX900, Hammond SK1, Ketron SD40,Ketron Event X Centerpoint Space Station, Bose compact