Bill , Roland used the chord sequencer for years[nothing new]..And it works as you understand it... The other companies know about it..it just was never in the forefront of the market[Roland]..

Squeak the chord memory is a great idea on the workstation, but is nothing [or as useful] as on Roland's prior arranger models...

Bill it may be easy to program via software, but the hardware buttons[access] make it work in realtime..It can't be an after thought to do it right..