Transposing The Pitch In Semitones - Yamaha PSR-SX900 Reference Manual

Transposing the Pitch in Semitones

You can transpose the overall pitch of the instrument (the keyboard sound, Style playback, MIDI Song playback, and
so on) in semitone steps.
The operation display can be called up via [MENU]  [Transpose].
Master
Keyboard
Song
NOTE
You can also transpose the pitch by using the TRANSPOSE [-]/[+] buttons.
NOTE
The pitch of an Audio Song is adjusted via the Pitch Shift function. Refer to the Owner's Manual.
NOTE
Transpose is not applied to the Drum Kits and SFX Kits Voice.
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PSR-SX900/SX700 Reference Manual
Transposes the pitch of the entire sound, with the exception of the Audio Song and input sound
from a microphone or the AUX IN jack.
Transposing the keyboard pitch including the chord root for triggering Style playback.
Transposes the pitch of the MIDI Song.