Regarding the bass inversion, Bohm are primarily an organ manufacture (The SE10 is just a simplified version of them to allow for single keyboard play) so bass inversion is an irrelevance as you have a pedalboard to play, thus most organ players don’t even know it is on their instruments let alone how to use it, so emphasizing this is to be expected. (Even though Bass inversion on a keyboard is clunky and robotic compared to a proper pedalboard it does show that you can still play bass to a fashion)

Bill
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English Riviera:
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