✔ Themes: Colors of toggle buttons have been changed for more contrast
? Songbook: Analyze song with the Song Analyzer
? Circle of Fifths and Scale-Circle: Signs weren’t complete for some scales
✔ Other improvements and fixes
❀ Special thanks to Anthony Steele-Perkins, Carsten Bleisch, Nathan Tacsik, Rob D. Schaefer, Sergei Nikiforov and Thomas Daniel for their contribution to this version