The Volume Controls; Master Volume; Auto Accompaniment; Expression Control - Yamaha Clavinova CVP-89 Owner's Manual

The Volume Controls

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The MASTER VOLUME control adjusts the overall volume of sound
produced by the Clavinova. It also adjusts headphone volume when one or two
pairs of headphones are plugged into the PHONES jacks.
Initially set the MASTER VOLUME control about half way between the
"MIN" and "MAX" settings. Then, when you start playing, adjust the control for
the most comfortable listening level.
Separate volume controls are provided for the RHYTHM, CHORD 1,
CHORD 2, and BASS sound. These volume controls let you set up the best
balance between the various accompaniment parts when the AUTO BASS
CHORD (ABC), Disk Orchestra Collection playback, and Performance Memory
features are used, and the RHYTHM volume control can be used to balance the
keyboard and rhythm sound when only rhythm accompaniment is used.
The volume of the keyboard can be independently adjusted (1 ... 127) by using
the BASS control while holding the [UTILITY] button — this is particularly
handy for adjusting the balance when recording the Clavinova sound.
The Auto Accompaniment volume controls can be assigned to other functions
via the "Accompaniment Volume Mode" utility function (page 61). They can be
used to control modulation, pitch bend, and expression; or individual reverb
depth for the rhythm, chord 1, chord 2, and bass parts.
An optional Yamaha EP-1 Expression Pedal can be plugged into the EXP
PEDAL jack for foot volume (expression) control of the keyboard sound only (i.e.
expression doesn't affect the auto-accompaniment sound or disk playback). Press
the pedal forward to increase volume, and backward to decrease volume.
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