Overview of the Roland A-49 MIDI Keyboard Controller: Everything you could possibly need in a small controller Direct control over your SuperNATURAL synths Three operating systems are compatible. Everything you could possibly need in a small controller Roland has returned with the A-49 MIDI controller, demonstrating its considerable keyboard design prowess. A great-feeling keybed, assignable knobs and switches, octave and transpose buttons, sustain and expression pedal inputs, Roland's sleek bend/mod lever, and their incredibly cool D-BEAM controller are all included in this board. Direct control over your SuperNATURAL synths When connected to a Roland SuperNATURAL instrument, like the INTEGRA-7 sound module or the SuperNATURAL mode button on the A-49, a variety of sound-selection features are unlocked.