Sayonara, Nanashi no Violin  

Nameless Violin, さよなら、ナナシのバイオリン

In an alternate reality, objects are given names and become living beings, including animals and humans. A college student who breaks his violin buys a "named" one that transforms into a human. The violin develops feelings for Sosukes playing, but despite their efforts, they cannot produce a satisfactory sound. To resolve this issue, the characters must find a solution.