Postscript: December 22, 2022
There was a problem with ver03.03.01, so I downgraded to ver03.02.01.
Therefore, the following update contents are not reflected.

As soon as the problem is resolved, we will contact you again for an update.

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Player loop playback is now possible.
This makes it possible to check the chord progression while looping playback.
Loop playback is possible by activating the loop button.
(For details on how to operate, please check the video "How to operate" on the Steam store page.)

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.)

Now supports 13 languages.
To change the language, select [Edit] from the menu and select [Language].

Supported languages

• Deutsch
  
• English
  
• Español
  
• Français
  
• Italiano
  
• 日本語
  
• 한국어
  
• Polski
  
• Português
  
• Русский
  
• Türkçe
  
• 简体中文
  
• 繁體中文

Chord notation is C, D, E, F, G, A, B notation.

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.)