Yamaha PortaSound PSS-51 Owner's Manual page 23

2. OPERATION GUIDE
The TEMPO feature is used to control the tempo of the
AUTO ACCOMPANIMENT, the SONG MEMORY, and
the DEMO playback.
1. Press the [TEMPO] button.
The current TEMPO will appear on the MULTI
DISPLAY in quarter-note beats per minute.
2. Set the TEMPO as desired.
Refer to the MULTI DISPLAY and increase or
decrease the tempo using the [+]/[-] buttons.
The TEMPO ranges from 40 to 240 beats per
minute. Each style comes with a different default
tempo that is automatically set whenever the style is
selected. If the tempo is changed, the default tempo
for a style can be recalled by pressing the [+] and [-]
buttons simultaneously.
NOTE: If a new style is selected when the rhythm is stopped,
the "default" tempo for that style will automatically be
selected as well. On the other hand, if a new style is
selected while the rhythm is playing, the new style will
maintain the tempo of the previous style.
Although the MASTER VOLUME is used to set the
overall volume level, the [ACCOMP. VOL.] button can
be used to selectively adjust the volume of the accompa-
niment in relation to all the other sounds.
1. Press the [ACCOMP. VOL.] button.
The current [ACCOMP. VOL.] level will appear in
the MULTI DISPLAY.
2. Adjust the volume.
Use the [+] button on the keypad to increase the
volume or the [-] button to decrease the volume. The
selected volume level wil be displayed on the
MULTI DISPLAY while the volume is being ad-
justed. The volume range can be adjusted from 0 to
24. A setting of 0 produces no sound while a setting
of 24 will generate maximum accompaniment vol-
ume. The default can be recalled by pressing the [4]
and [-] buttons simultaneously.
NOTE: The ACCOMP. VOL. control is only in effect when AUTO
ACCOMPANIMENT has been selected. In addition, the
control is only active for the ACCOMPANIMENT SECTION
of the keyboard.
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