1) Hold down the [TRANSPOSE] button.
2) Tap the key that represents the interval you’d like to shift by relative
to Middle C. For example, if you want to shift up a semitone, tap
the C-sharp key.
3) Let go of the [TRANSPOSE] button. An up or down arrow will
appear in the [TRN] area of the LCD depending on which direction
you’ve transposed.
When you want to return things to normal, hold down [TRANSPOSE]
again and tap on Middle C (marked by a small triangle on the front
panel).