The MIDI connector used to send data from a master device to the MIDI In of a connected slave device.

The Message sent when key is released.

The MIDI message sent when note is played (key pressed).

Every key on a MIDI keyboard has its own note number ranging from 0 to 127, where 60 represents middle C. Some systems use C3 as middle C while others use C4.

MIDI information can be interpreted by the receiving MIDI instrument in a number of ways, the most common being polyphonically on a single MIDI channel (Poly-Omni Off mode). Omni mode enables a MIDI Instrument to play all incoming data regardless of channel.

A MIDI Sound Source capable of producing several different sounds at the same time and controlled on different MIDI channels.

A sound generating device with no integral keyboard.

A device or sequencer function that enables two or more streams of MIDI data to be combined.

The socket used to receive information from a master controller or from the MIDI Thru socket of a slave unit.

A chart, usually found in MIDI product manuals, which provides information as to which MIDI features are supported. Supported features are marked with a 0 while unsupported feature are marked with a X. Additional information may be provided, such as the exact form of the Bank Change message.