musical keyboard
musical instrument component
pedal keyboard
musical keyboard played with the feet, usually used for low-pitched notes
isomorphic keyboard
musical input device consisting of a 2D grid of buttons or keys on which any given sequence/combination of musical intervals has the "same shape" on the keyboard wherever it occurs—within a key, across keys, across octaves, and across tunings
organ manual
musical keyboard on an organ played with the hands
Roland E-series
product-line of musical keyboards manufactured by Roland
enharmonic keyboard
musical keyboard where enharmonically equivalent notes do not have identical pitches