Yamaha GW50 Owner's Manual page 163

SUPPLEMENTAL INFORMATION
Using Mute to Interrupt Sustained Sounds
In a variation of the above technique, you can also use mute to break up sustained sounds in the accompaniment, such
as strings or a held bass note. However, this cannot be done by mute events alone; even with an accompaniment mute
event following a chord event, the sustained sound continues to be heard. To get around this, insert a "dummy" chord
event AT or AFTER the mute event. In this way, the sustained sound will be muted from the point of the "dummy" event.
As shown in the example below from measure 53, the
mute event At or is entered at the second 16th note and
the "dummy" chord event (A7+9/F
at the third 16th note. As a result, the sustained accom-
paniment note is muted from the third 16th note. In this
example, however, the mute event can be entered
together with the "dummy" chord event at the third 16th
note and the result would still be the same.
This effectively interrupts the normally held accompani-
ment sound by two 8th note rests. The sustained sound
is brought back in again by un-muting the accompani-
ment at the third 16th note in beat 2.
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USE OF ADVANCED RECORDING TECHNIQUES – FACTORY SET SONG 1
USE OF ADVANCED RECORDING TECHNIQUES – FACTORY SET SONG 1
s
) is entered after it,
s "Dummy" chord; sustained
sound is muted from this point.