If it was produced as a module, there would be no need of a two tier stand, as the instrument is large enough to warrant one when used with a controller.
I do agree, however, that as it is, the microArranger is a great bargain.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.