Roland AX-7
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The Roland AX-7 is a keytar that was manufactured by Roland Corporation from 2001 to 2007. This modern instrument contains many more advanced features than early keytars such as its predecessor, the Roland AX-1, and the Yamaha SHS-10. It runs on 8 AA batteries or an external power source. It has a 45 velocity sensitive keys (without aftertouch), and a 3-character LED display. Several features aimed towards stage performance are present, such as a pitch bend ribbon, touchpad-like expression bar, sustain switch, and volume control knob, all on the upper neck of the instrument. There is also a proprietary "D-Beam" interface, made up of infrared sensors that detect nearby motion.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Roland_AX-7.jpg/220px-Roland_AX-7.jpg)
In 2007 the Roland AX-7 was discontinued and is succeeded by the Roland AX-Synth since 2009.