You can tune the RD-500 to match other instruments if desired. The available range of tuning is A=427.4 - 452.6 Hz. Use the following procedure to set the tuning of the RD-500:
1. Hold down the TRANSPOSE button and use the DEC/INC buttons to adjust the tuning.
The screen on the RD-500 will display between 27.4 and 52.6 (the first digit is not displayed).