I'd like to use my Teensy 3.1 to send MIDI Show Control messages using USB MIDI in order to control an ETC Nomad system. These are different from standard NoteOn, NoteOff, ProgramChange, etc. commands, but as far as I can tell they are not supported by the standard library.
Is there any way I can send these messages directly (using lower level commands), as seen here, or does anyone know of a library that supports this? Google has, unusually, not been much help.