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Amazon.com: Akai Professional MPK249 | 49 Key Semi Weighted USB MIDI Keyboard Controller Including Core Control & RockJam Xfinity Heavy-Duty, Double-X, Pre-Assembled, Infinitely Adjustable Piano Keyboard Stand : Musical Instruments
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Amazon.com: Piano Keyboard 49-Key MIDI Keyboard MIDI Control USB Controller MIDI Keyboard 8 Drum Pads With USB Cable : Musical Instruments
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