Roland VP-7 - Manual (Page 26)

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Tuning (Tune)
When performing with an ensemble, you’ll need to adjust the VP-7’s pitch to match the other instruments.
To do this, turn the [TUNE] knob located on the VP-7’s rear panel.
• Turning the knob toward the position will adjust the pitch of the A4 note toward the 438 Hz or 439 Hz settings. Turning the
knob toward the position will adjust the pitch toward 441 Hz or 442 Hz. When the knob is in the center, the pitch is 440 Hz.
• Immediately after you change this setting, the Level (Tune) indicators on the top panel will indicate the value you specified.
442 Hz indicator (red)
441 Hz indicator (yellow)
440 Hz indicator (yellow)
439 Hz indicator (green)
438 Hz indicator (green)
* When you turn on the power, the tuning is set to 440 Hz regardless of the position of the knob . You can adjust the tuning if
necessary .