Strange that Roland hasn't updated it's accompaniment engine to include rootless voicings. They aren't just used in Jazz, but in a lot of pop, and R&B, and Gospel tunes as well.

Yes, Roland has ON BASS capability, but it is not the same thing.

Anyone who plays Hammond B-3 will be very familiar with rootless chord voicings allowing for smooth voice leading, and it is an integral part of piano accompaniment, and not just a luxury on an arranger keyboard anymore, but a necessity.

I hope Roland see their way clear to implement it on their next new arranger.

Ian