Yamaha YC-20 Owner's Manual - Page 9

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As an example of what this means when

you

play, let us see which note can be produced by

using one of the tone levers and pressing the

key of middle C (с). Pressing middle C and using

the 4' tone lever, for example, will result in the

same

note as would

be produced

by pressing

c2 (using the 8' tone lever, i.e. its Fundamental.)

It can thus be seen that the use of these harmonic

levers actually results in increasing the YC-20

Combo Organ's compass above and below that

which is indicated by the keys alone.

The use

of the 16' lever, for example,

will

extend

the

manuals

down

a further

octave

to Сі.

(See

dotted line-above). Similarly the 1' lever raises

the tone three octaves

but, in actual

practice,

the highest note on the YC-20 is bs. Thus when

a scale

is continued

upward

beyond

bz, the

previous octave is repeated. This is no cause for

alarm. It is inherent in the design of the YC-20

and

will

cause

you

inconvenience

at all

when playing.

The major use of the harmonic levers, however

is to increase the richness of tone—they

are the

spices that, when

applied to the

fundamental,

will give

big

full sound

to the

performance.

Let your ears be your guide to the creation of

good music, try not to over-work the full effect

as this will weaken

its effectiveness.

Change

your registration as often as the mood

of the

music requires.

CH.1@

(16'0,8'9.40.2:'0,2'D,

120.10)

If the Balance Lever @ is set to the "0" position

(far side), the tone color of the Manual Keyboard

can be selected by a combination

of the CH.I

tone levers.

The CH.I tone color is the basic sound of the

Combo Organ.

CH. ІІ & (16' 0,8 9,4

p.29)

If the Balance Lever @ is set to the "3" position

(near

side),

the

tone

color

of the

Manual

Keyboard can be selected by a combination of the

CH.II tone levers.

The tone color of CH.lI can be widely changed

by operation

of the

Bright

Lever(B.

If the

Bright Lever is set at "O';aflute-family tone color

(a tone color with less overtone) can be pro-

duced.

if set to "3", a string-familytonecolor

(with rich overtones) can be produced.

CH. I/CH. II

When the Balance Lever @ is set to the middle

position, tone

color of the Manual

Keyboard

can be selected by a combination of the CH.I

and CH.II tone levers(9 (8.

Volume (Master Volume)

Although

this

control

actually

belongs

to a

group of OTHER

CONTROLS (page 70), it will

be described here because it has a relationship

with the Tone

Levers. The tones selected with

the maximum volume of the tone levers of СН. I,

CH.Il and Manual

Bass are regulated with this

control.

Manual Bass@ (16'0,8'0)

If the Manual

Bass lever @ is operated (set to

near side), the 17 bass keys identified by reverse

key colors, are changed to produce bass tones.

Tone color is selected by a combination of the

16' and 8' Manual Bass Tone Levers.

Bass Volume@

This also belongs to a group of OTHER

CON-

TROLS

(described

later).

Tone

volume

Manual

Bass

can

regulated

by the

Bass

Volume

control,

indirectly

controlled

the

Master Volume.