You can now change the screen size.
You can change the screen size of OZ Chord Player by changing the screen resolution.

To change the screen resolution, select [Edit] from the menu and then select [Screen Resolution].

• The minimum resolution that can be set is 848 * 600.
  
• There is no limit to the maximum resolution that can be set.
  
• The maximum resolution that can be set is limited so that it does not exceed the resolution of the monitor you are using.
  
• The default screen resolution is 1130 * 800.
  
• If the resolution is smaller than the default setting, the image will be slightly degraded.
  

Note:
If you want to use an earlier version, open the game properties on Steam, select BETAS, and select the previous version.
(You do not need to enter the access code.)