What are the steps you're taking to transpose your keys? Follow these steps below:
1) Press the Metronome and Lesson buttons at the same time to enter Advanced Function Mode. The two button LEDs will be lit. 2) Use the keys marked Transpose + or Transpose - to set the transpose value. Press both keys together to reset the transposition back to the default value of 0. 3) Press both the Metronome and Lesson buttons again to exit Advanced Function Mode.