I used to perform with the Roland RA800 connected to a Fatar 1176 keyboard (via midi) but sold it because I found it very inconvenient to access all the arranger buttons while playing the keyboard. The BIG problem with module units is that there's just no way to position the module so that all arranger control buttons are as easily accessible from a kb playing position as an all in one arranger & keyboard unit offers. I personally DO NOT recommend going the module route for 'live' performance. - Scott
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