HP601: How can I change the tuning method?

The HP601 features the following tuning methods (temperaments).

• Equal
• Just Major
• Just Minor
• Pythagorean
• Kirnberger I
• Kirnberger II
• Kirnberger III
• Meantone
• Werckmeister
• Arabic

To change the settings, perform the steps below:

1. Simultaneously press the [Ambience] button and [Brilliance] button.
   The piano is in Function mode.
2. Use the [<] [>] buttons to select "Temperament".
3. Use the [–] [+] buttons to select the desired temperament.
4. (Option) Use the [<] [>] buttons to select "Temperament Key", then select the key. (C-B)
5. Simultaneously press the [Ambience] button and [Brilliance] button to exit Function mode.