Yamaha QY100 Owner's Manual - Page 31

QY100 System Overview: What It Is and What It Does Tone Generator The QY100 tone generator is a high-performance sound module in its own right, complete with 525 voices and 22 drum and percussion kits. In fact, the tone generator block is fully GM and XG compatible (see explanations, below) so you can actually use it as an independent sound module driven from an external sequencer or computer-based MIDI music system. The QY100 even provides a range of editing controls for the voices and drum kits so you can customize the sound to suit your music. A complete list of the QY100 voices is provided in the separate Data List booklet. GM(General MIDI) System Level 1 "GM System Level 1" is a standard specification that defines the arrangement of voices in a tone generator and its MIDI functionality, ensuring that data can be played back with substantially the same sounds on any GM-compatible tone generator, regardless of its manufacturer or model. Tone generators and song data that meet the "GM System Level 1" bear this GM logo. XG "XG" is a tone generator format that expands the voice arrangement of the "GM System Level 1" specification to meet the ever-increasing demands of today's computer peripheral environment, providing richer expressive power while maintaining upward compatibility of data. "XG" greatly expands "GM System Level 1" by defining the ways in which voices are expanded or edited and structure and type of effects. When commercially available song data bearing the XG logo is played back on a tone generator which bears the XG logo, you will enjoy a full musical experience that includes unlimited expansion voices and effect functions. 31