Yamaha MO8 Owner's Manual - Page 135

Basic Structure Part structure of the Tone Generator block The MO plays the sounds in its tone generator block in response to MIDI messages received from external controllers or sequencer. The MIDI messages are assigned to sixteen independent channels, and the instrument is capable of simultaneously playing sixteen separate Parts, via the sixteen MIDI channels. However, the sixteen-channel limit can be overcome by using separate MIDI "ports," each supporting sixteen channels. n The USB cable supports up to eight separate MIDI ports. However, the tone generator in the MO supports only one port. n A single MIDI cable/connection cannot handle data over multiple MIDI ports. ■ Part structure of the tone generator block in the Voice mode In this mode, a Voice is played using a single Part. The tone generator block in the Voice mode receives MIDI data over a single channel. For this reason, song data on an external sequencer consisting of multiple MIDI channels will not play back properly in this mode. If you are using an external MIDI sequencer or computer to play the instrument, make sure to use the Song or Pattern mode. Tone generator block Voice mode MIDI port Part 1 n • To set the MIDI receive channel for single timbre operation (Voice and Performance modes), use the following operation in the Utility mode. [UTILITY] → MIDI display → BasicRcvCh • In the Voice mode, the instrument recognizes only data over MIDI Port 1. ■ Part structure of the tone generator block in the Performance mode This mode lets you play a Performance (in which multiple Voices or Parts are combined-in a layer, or in other configurations). While a total of seven Parts are available in this mode (as shown below), a maximum of four Parts can be used simultaneously. Although this mode lets you play several Parts at the same time, all are set to receive over the same single MIDI channel, as in the Voice mode. For this reason, song data on an external sequencer consisting of multiple MIDI channels will not play back properly in this mode. If you are using an external MIDI sequencer or computer to play the instrument, make sure to use the Song or Pattern mode. Tone generator block Performance Mode MIDI Port 1 Part 1 Part 2 Part 3 Part 4 Parts for the internal tone generator Part 5 Part 16 Internal Structure (System Overview) n • To set the MIDI receive channel for single timbre operation (Voice and Performance modes), use the following operation in the Utility mode. [UTILITY] → MIDI display → BasicRcvCh • In the Performance mode, the instrument recognizes only data over MIDI Port 1. ■ Part structure of the tone generator block in the Song mode/Pattern mode This mode lets you use multiple Parts and assign different Voices to be played back for each Part. Since different MIDI channels can be set for each Part of the tone generator block, you can use an external MIDI sequencer to play the sounds. As illustrated below, the sequence data of each track plays the corresponding Parts (those having the same MIDI channel assignment) in the tone generator block. Tone generator block Song/Pattern Mode MIDI Port 1 (for the internal tone generator) Part 1 Part 2 Part 14 Part 15 Part 16 The MIDI Transmit Channel/Port of the Song/Pattern can be set with the following operation. In the Song mode: [SONG] → Song selection→ [F3] TRACK → [SF1] CHANNEL In the Pattern mode: [PATTERN] → Pattern selection → [F3] TRACK → [SF1] CHANNEL When sounding the internal tone generator block, assign the tracks to Transmit Port 1 and use Parts 1 - 16. Keep in mind that data over Transmit Ports 2 or 3 cannot sound the internal tone generator block. The MIDI Receive Channel of the tone generator's part can be set with the following operation. In the Song mode: [SONG] → Song selection → [MIXING] → [EDIT] → Part selection → [F1] VOICE → [SF2] MODE → ReceiveCh In the Pattern mode: [PATTERN] → Pattern selection → [MIXING] → [EDIT] → Part selection → [F1] VOICE → [SF2] MODE → ReceiveCh n For details about MIDI, see page 223. n The Voice and related settings (volume, pan, etc.) are sounded by the keyboard according to the Part parameters in the Mixing settings of the current Song/Pattern and Part. Other settings such as Controllers and Effect types correspond to the Common parameters in the Mixing settings of the current Song/Pattern. Parts 5 - 16 are not used. Owner's Manual 135