Hammond did make an arranger type instrument...had the drawbars...single manual...it was made several years ago.
The accompaniment was limited...no On Bass, for example.
You could add another manual.
http://website.lineone.net/~thebkc/Hammond_XE.html
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.