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General MIDI logo from the MIDI Manufacturers Association. General MIDI (also known as GM or GM 1) is a standardized specification for electronic musical instruments that respond to MIDI messages. GM was developed by the American MIDI Manufacturers Association (MMA) and the Japan MIDI Standards Committee (JMSC) and first published in 1991. The ...
MIDI includes System Exclusive messages that are extensions of the MIDI format implemented by MIDI manufacturers. Some of the extensions, the "Universal" ones, are a set of the same functions that different manufacturers can implement differently in detail. Some of them are Non Real Time, with no reliable delivery timing. Others are Real Time ...
A MIDI message consists of a status byte, which indicates the type of the message, followed by up to two data bytes that contain the parameters. [37] MIDI messages can be channel messages sent on only one of the 16 channels and monitored only by devices on that channel, or system messages that all devices receive. Each receiving device ignores ...
This takes the form of a special global system exclusive message: F0 7F 7F 01 01 hh mm ss ff F7. The manufacturer ID of 7F indicates a real-time universal message, the channel of 7F indicates it is a global broadcast. The following ID of 01 identifies this is a time code type message, and the second 01 indicates it is a full-time code message ...
MIDI beat clock, or simply MIDI clock, is a clock signal that is broadcast via MIDI to ensure that several MIDI-enabled devices such as a synthesizer or music sequencer stay in synchronization. Clock events are sent at a rate of 24 pulses per quarter note .
RTP-MIDI (also known as AppleMIDI) is a protocol to transport MIDI messages within Real-time Transport Protocol (RTP) packets over Ethernet and WiFi networks. It is completely open and free (no license is needed), and is compatible both with LAN and WAN application fields.
When any cue is called by a user (typically a stage manager) and/or preprogrammed timeline in a show control software application, the show controller transmits one or more MSC messages from its 'MIDI Out' port. A typical MSC message sequence is: the user has just called a cue; the cue is for lighting device 3; the cue is number 45.8
OSC's main features, compared to MIDI, include: [1] Open-ended, dynamic, URI-style symbolic naming scheme; Symbolic and high-resolution numeric data; Pattern matching language to specify multiple recipients of a single message; High resolution time tags "Bundles" of messages whose effects must occur simultaneously