Star of Beethoven

The door of fate now opens... Piano prodigy Ichiro Yaso left the world of classical music after an incident at a competition. He vowed to never play the piano again, but now that he has a mentor claiming to be Beethoven, it may be time for his redemption!

(Source: MANGA Plus)

Note: Includes the one-shots "LIFE LIAR FROM HELL" and "Violin-hime (バイオリン姫)".