Yamaha PSR-270 - Manual (Page 77)

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Change the value.
Use the OVERALL +/- buttons to increase or decrease the Tempo value.
Holding down either button continuously increases or decreases the value.
Restoring the Default Tempo Value
Each song and style has been given a default or standard tempo. If you’ve
changed the tempo, you can restore the original default setting by pressing
both OVERALL +/- buttons simultaneously (when Tempo is selected in the
Overall menu).
Also, the tempo of a song or style returns to the default setting when
selecting a different song or style. (The set tempo remains, however, when
switching styles during playback.) When you turn on the power of the
PortaTone, the tempo is automatically set to 116 bpm.
ABOUT THE BEAT DISPLAY
This section of the display provides a convenient, easy-to-understand
indication of the rhythm for song and style playback. The dark bars below
the name section in the display flash in time with the beat. The first dark
bar indicates the first beat of the measure, and the other bars flash in
sequence to indicate subsequent beats.
SELECTING AND PLAYING SONGS — THE SONG MODE
First beat of measure
003 Rockin'
SONG
Second beat
Third beat
Fourth beat
Decreases Tempo
value
Increases Tempo
value
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