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You can define a constant that represents a SysEx message. The format is as follows:

# F0 12 34 56 .. F7

 
Spaces are optional and intended for readability when defining longer messages that may be difficult to read. You must include # and F0 at the beginning and you must have F7 at the end – you can use lowercase though – and the hex bytes in between must be between 00 and EF. Variables of type SysexMessage can be used to store a SysEx message. There are system functions available for sending SysEx messages to MIDI In blocks and MIDI Out blocks as well as for getting and changing values in a SysEx message. That last is useful for parameterized real-time SysEx messages.