Part IIISystem Message13 Active SensingFormatMessage Format: FEHSend This message is never sent.Receive Once this message is received, the Active Sensing mode is entered. If no MIDI message isreceived for a specified amount of time, voices being sounded by the Instrument s sound source arereleased, the controller is reset, and the Active Sensing mode is exited.14 System Exclusive MessageFormatMessage Format: F0H....F7HThe Instrument sends and receives standard universal system exclusive messages, and system exclusivemessages that have Instrument-specific formats.14.1 Universal Realtime System Exclusive MessageFormatMessage Format: F0H 7FH....F7H14.1.1 Master VolumeFormatMessage Format: F0H 7FH 7FH 04H 01H llH mmH F7Hll: Value LSBmm: Value MSBSend This message is never sent.Receive Receipt changes the Master Volume parameter. Note that the Master Volume parametercannot be changed with an Instrument operation.24