Yamaha MO6 Owner's Manual - Page 226

About MIDI ■ Pitch Bend Pitch Bend messages are continuous controller messages that allow the pitch of designated notes to be raised or lowered by a specified amount over a specified duration. ■ Channel Aftertouch Messages which let you control the sounds by the pressure you apply to the keys after the initial striking of the keys, over the entire channel. This synthesizer does not transmit this data from the keyboard; however, this synthesizer does properly respond to this data when received from an external device. ■ Polyphonic Aftertouch Messages which let you control the sounds by the pressure you apply to the keys after the initial striking of the keys, for each individual key. This synthesizer does not transmit this data from the keyboard; however, the data is transmitted from the internal sequencer. SYSTEM MESSAGES System messages are the data related to the overall system of the device. ■ System Exclusive Messages System Exclusive messages control various functions of this synthesizer, including master volume and master tuning, tone generator mode, effect type and various other parameters. General MIDI (GM) System On (Song mode/Pattern only) When "General MIDI system on" is received, the MO will receive the MIDI messages which are compatible with GM System Level 1, and consequently will not receive NRPN and Bank Select messages. F0 7E 7F 09 01 F7 (Hexadecimal) n Make sure that the interval between this message and the first note data of the song is at least a quarter note or greater in length. Master Volume When received, the Volume MSB will be effective for the System Parameter. F0 7F 7F 04 01 ll mm F7 (Hexadecimal) * mm (MSB) = appropriate volume value, ll (LSB) = ignored ■ System Realtime Messages These messages control the sequencer, that is to say Song and Pattern. Active Sensing (FEH) Once FEH (Active Sensing) has been received, if no MIDI data is subsequently received for longer than an interval of approximately 300 msec, the MO will perform the same function as when All Sounds Off, All Notes Off, and Reset All Controllers messages are received, and will then return to a status in which FEH is not monitored. Timing Clock (F8H) This message is transmitted with a fixed interval (24 times per 1/4 note) to synchronize connected MIDI instruments. You can select whether the sequencer block uses the internal Timing Clock, or external Timing Clock messages received via MIDI IN by setting the MIDI Sync parameter: [UTILITY] → [F5] MIDI → [SF3] SYNC → MIDI Sync. Start (FAH) This message lets the MIDI sequence data start playing back from the beginning. This message will be transmitted when pressing the [F] (Play) button at the top of the Song or Pattern. Continue (FBH) This message lets the MIDI sequence data start playing back from the current song position. This message will be transmitted when pressing the [F] (Play) button at the middle of the Song or Pattern. Stop (FCH) This message causes MIDI sequence data (song) to stop playing back. This message will be transmitted when pressing the [■] (Stop) button during playback. n You can select whether this synthesizer will transmit Timing Clock, Start, Continue, and Stop messages by setting the SeqCtrl parameter: [UTILITY] → [F5] MIDI → [SF3] SYNC → SeqCtrl. ■ System Common Message System Common messages also control the sequencer, including Song Select and Song Position Pointer messages. Appendix 226 Owner's Manual