Yamaha MU128 Owner's Manual page 144

Copy and Store Operations
2 Use the VALUE -/+ buttons or data dial to change the destination
Performance number.
3 Press the ENTER button to actually execute the Store operation.
An "Executing..." message flashes in the display during the
operation. When the data has been stored, the MU128 returns to
the Performance Edit menu.
To cancel the operation without saving, press the EXIT button
(before pressing ENTER).
144
TONE GENERATOR
1
A/D INPUT
PART BANK/PGM
2
VOLUME
Piano Chrom.perc. Organ
Ensemble Brass Reed
STAND BY Synth effects Ethnic Percussive
ON MIDI IN A PHONES
Use these to change Performance number.
MU128 Performance Mode
Performance number
PLAY EDIT
UTIL EFFECT
MODE EQ
XG
TG300B
PERFORM
VOL EXP PAN REV CHO VAR KEY
Guitar Bass Strings
SELECT PART GROUP
Pipe Synth lead Synth pad
SFX Model excl. Drum
MU PLG-1 PLG-2 PLG-3
ALL
MUTE/ PART PART
SOLO
SELECT
SELECT
ENTER
VALUE VALUE
EXIT