Yamaha A3000 Owner's Manual - Page 29

Chapter 1 MIDI Connections MIDI Connections This section explains how to connect the A3000 to MIDI devices. Important Be sure that power to the A3000 and to peripheral devices is OFF before making MIDI connections. Connecting devices while power is ON may result in MIDI processing errors or unexpected and continuous sound output. About MIDI The following overview introduces some basic MIDI concepts. Readers familiar with MIDI may wish to skip to "MIDI Connection Configurations," on the next page. What is MIDI? MIDI (for "Musical Instrument Digital Interface") is a standard, internationally-recognized interface for music-related digital communication among electronic instruments, computers, sequencers, and related devices. MIDI connectors and cables MIDI devices provide MIDI connectors marked IN, OUT, and THRU. The IN connector receives data from external devices, the OUT connector outputs locally produced data, and the THRU connector relays data received at the IN connector. MIDI connections are made by running standard MIDI cables between connectors on different devices. Each MIDI cable connects the OUT or THRU connector of one device to the IN connector of another device. Channels A single MIDI cable carries up to 16 channels of performance data. If you have a MIDI setup consisting of three keyboards outputting performance data to a fourth device, for example, each keyboard would be transmitting data over a different channel. Each channel is identified by its channel number (1 to 16). Chapter 1 Setting Up 27