Devices with extra features (also including rhythm input, instrument selection, transport control) are sometimes called keyboard controllers.

When these three keys are pressed simultaneously a fourth keypress is erroneously registered by the keyboard controller.

In computing, a keyboard controller is a device which interfaces a keyboard to a computer.

By scanning these crossings, a keyboard controller can determine which key was pressed.

A hardware interrupt generated when a key is pressed or released, see keyboard controller (computing)

Harmonix included the keyboard controller to help address these goals.

The most common type of device in this class is the keyboard controller.

The keyboard controller scans the rows and columns to determine which note the player has pressed.

It was perhaps the first of the pure keyboard controllers, brought to market to complement Kurzweil's rack mounted synthesizers.

Samplers also began to allow sections of audio to be edited and played by a keyboard controller.