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A p p e n d i x
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Glossary
A
Aftertouch:
MIDI messages which are transmitted when
additional pressure is applied to the keyboard
after notes are played.
Attack time:
The time over which the volume rises from 0
when a note is played, until the maximum
volume is reached.
Auto Bass Chord (ABC):
A function which will automatically re-
harmonize the accompaniment patterns by
specifying chord progressions.
AWM 2 tone generator:
A method of generating sound developed by
Yamaha which is based on digitally recorded
waveforms. Since it generates the complex
waveform of actual acoustic instruments, it
provides extremely realistic sounds. Digital
filtering is also built-in, allowing precise
control over the tone. AWM2 is an acronym
for Advanced Wave Memory 2.
B
Beat:
When playing back or recording a song, one
“beat” (a rhythmic subdivision of a measure).
Bulk data:
A type of System Exclusive message which
contains a collection of data for the internal
settings of a device.
Bulk dump:
The process of transmitting bulk data in MIDI
System Messages to external MIDI devices.
C
Chord root:
An alphabetical letter which indicates the
root of a chord. The QY70 lets you indicate
12 different chord roots.
Chord template:
A collection of preset models for chord
progressions. The collection includes generic
chord progressions for Popular styles as well
as Blues and Tension styles.
Chord track (Cd):
A track that lets you record and play back
Chord Roots and Chord Types for the Auto
Bass Chord (ABC) function.
Chord type:
A symbolic or numerical indication of how a
chord is composed (Major, minor, 7th, etc.).
The QY70 allows you to select from 26
(including “non-ABC”) chord types.
Chorus:
A type of effect that adds richness and depth
to the sound, similar to what happens when
multiple sound sources are heard simulta-
neously.
Click:
A metronome that is sounded when playing
back or recording on a sequencer.
Clock:
A unit of timing resolution. On the QY70, one
clock is a length of 1/480th of a quarter note.
Control change:
A group of MIDI messages that can be used
to select voice banks and control the volume,
pan, etc. They are also output when a
controller (modulation wheel, foot controller,
etc.) is operated. Each controller has its own
control number.