MIDII I Functionsi
●Channel Messages
The 9000Pro is an electronic instrument that can handle 32 channels. This is usually expressed as “it can play 32 instruments at the same time.” Channel messages transmit information such as Note ON/OFF, Program Change, for each of the 32 channels.
Message Name | 9000Pro Operation/Panel Setting |
Note ON/OFF | Messages which are generated when the keyboard is played. Each mes- |
| sage includes a specific note number which corresponds to the key which |
| is pressed, plus a velocity value based on how hard the key is played. |
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Program Change | Voice selecting (control change bank select MSB/LSB setting) |
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Control Change | Volume, panpot (Mixing Console), etc. |
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●System Messages
This is data that is used in common by the entire MIDI system. System messages include messages like System Exclusive Messages that transmit data unique to each instrument
manufacturer and Realtime Messages that control the MIDI device.
Message Name | 9000Pro Operation/Panel Setting |
System Exclusive | Effect type settings (Mixing Console), etc. |
Message |
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Realtime Messages | Clock setting, Start/stop operation |
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•The performance data of all songs, styles and Multi Pads is MIDI data.
The messages transmitted/received by the 9000Pro are shown in the MIDI Data Format and MIDI Implementation Chart on pages 228 and 244.
■MIDI and TO HOST Terminals
In order to exchange MIDI data between multiple devices, each device must be connected by a cable.
There are two ways to connect: from the MIDI terminals of the 9000Pro to the MIDI terminals of an external device using a MIDI cable, or from the TO HOST port of the 9000Pro to the serial port of a personal computer using a special cable.
If you connect from the 9000Pro TO HOST terminal to a personal computer, the 9000Pro will be used as a MIDI interface, meaning that a dedicated MIDI interface is not necessary.
In the rear panel of the 9000Pro, there are two kinds of terminals, the MIDI terminals and the TO HOST terminal.
MIDI IN | Receives MIDI data from another MIDI device. |
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MIDI OUT | Transmits the 9000Pro’s keyboard information as MIDI data to another |
| MIDI device. |
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TO HOST | Transmits and receives MIDI data to and from a personal computer. |
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The MIDI A terminals and the TO HOST terminal are mutually exclusive; they cannot be used at the same time. Use the HOST SELECT switch to change between the MIDI A terminals and the TO HOST terminal.
When the HOST SELECT switch is set to “MIDI,” the MIDI A terminals receive/trans- mit MIDI data. When the HOST SELECT switch is set to “Mac,”
The MIDI B IN/OUT terminals function regardless of the setting of the HOST SELECT switch.
•When using the TO HOST ter- minal to connect to a personal computer using Windows 95/ 98, a Yamaha MIDI driver must be installed in the personal computer. The included disk contains the Yamaha MIDI driver.
•Special MIDI cables (sold sep- arately) must be used for con- necting to MIDI devices. They can be bought at music stores, etc.
•Never use MIDI cables longer than about 15 meters. Cables longer than this can pick up noise which can cause data errors.
•The MIDI B port ignores Sys- tem Exclusive messages.
Reference 169
167