47MIDI ImplementationTetra receives MIDI data according to the mode controls under GLOBAL. Inaddition, there is interaction between some of the program parameters thatdetermine the overall response of Tetra to MIDI data. Note that the followingapplies to using both the MIDI jacks and USB.Following are the Global parameters that affect response to MIDI:MIDI Channel: ALL, 1…16 — Selects the MIDI channel to send and receivedata, 1 to 16. All receives on any channel.Clock: see table — Selects the MIDI clock status as follows:Display MIDI Clock SettingInternal MIDI clock is neither sent nor receivedMIDI Out MIDI clock is sentMIDI In MIDI clock is receivedMIDIn/Out MIDI clock is received and transmittedMIDI Parameter Send: NRPN, CC, Off — Changes to the values of Tetra’s frontpanel controls are transmitted via MIDI as Non-registered Parameter Number(NRPN) controllers or as Continuous Controllers (CC). Transmission ofparameters can also be turned off.MIDI Parameter Receive: All, NRPN, CC, Off — Sets the method by whichTetra receives parameter changes via MIDI. As with transmission, NRPNs arethe preferred method, though some controllers may only be able to send CCs.MIDI Control: Off, On — When On, the synth will respond to MIDI controllers,including Pitch Wheel, Mod Wheel, Pedal, Breath, Volume, and Expression.MIDI SysEx: Off, On — When On, the synth will respond to received MIDISysEx messages, and will transmit them, when prompted, to the MIDI Out.MIDI MessagesSystem Real-time MessagesStatus Description1111 1000 MIDI Timing Clock