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A MIDI keyboard or controller keyboard is typically a piano-style electronic musical keyboard, often with other buttons, wheels and sliders, used as a MIDI controller for sending Musical Instrument Digital Interface commands over a USB or MIDI 5-pin cable to other musical devices or computers.
While MIDI 1.0 by itself provides a communication protocol which ensures that different instruments can interoperate at a fundamental level – for example, that pressing keys on a MIDI keyboard will cause an attached MIDI sound module to play musical notes – GM goes further in two ways.
MIDI note numbers shown in parentheses next to their corresponding keyboard note. MIDI allows the selection of an instrument's sounds through program change messages, but there is no guarantee that any two instruments have the same sound at a given program location. [112] Program #0 may be a piano on one instrument, or a flute on another.
The MIDI controller had no sound of its own, but was designed for the sole purpose of allowing access to more sound controls for performance purposes. MIDI controllers allowed one to split the keyboard into two or more sections and assign each section to a MIDI channel, to send note data to an external keyboard.
A Roland keytar, keyboard MIDI controller designed to be worn with a shoulder strap during performance.The keytar does not produce any musical sounds by itself. As a MIDI controller, it only sends data about which keys or buttons are pressed to a MIDI-compatible sound module or synthesizer, which then produces the sounds.
In a typical keyboard layout, black note keys have uniform width, and white note keys have uniform width and uniform spacing at the front of the keyboard. In the larger gaps between the black keys, the width of the natural notes C, D and E differ slightly from the width of keys F, G, A and B. This allows close to uniform spacing of 12 keys per ...
An isomorphic keyboard is a musical input device consisting of a two-dimensional grid of note-controlling elements (such as buttons or keys) on which any given sequence and/or combination of musical intervals has the "same shape" on the keyboard wherever it occurs – within a key, across keys, across octaves, and across tunings.