Universal System Exclusive messages

Drumstick Metronome understands some Universal System Exclusive messages. Because the device ID is not yet implemented, all the recogniced messages must be marked as broadcast (0x7F).

MTC Message: Time Signature Change Message

Format: 0xF0 0x7F 0x7F 0x03 Command Length Numerator Denominator ... 0xF7
                            0x02: TS change 
                            0x42: TS change 

Notes: both commands affect only the next scheduled patterns after receiving the command. Length is at least 2. Extra bytes following Numerator and Denominator are ignored.

MMC Messages

Format: 0xF0 0x7F 0x7F 0x06 Command 0xF7
                            0x01: Stop
                            0x02: Play
                            0x03: Deferred Play