The character commonly called "Badger" is specifically a Japanese raccoon dog, or tanuki, per the original source. This tanuki visits the protagonist's home on the third night, carrying drumsticks and sheet music for "The Merry Coachman" (alternatively titled "The Merry Master of a Coach Station"). It requests timpani accompaniment to the protagonist's cello performance, positioning itself to strike the cello body rhythmically with its drumsticks.

During the session, the tanuki notes the cellist's tempo remains slower than intended despite acceleration attempts. This encounter provides the protagonist hands-on experience in rhythmic coordination and percussive synchronization. The tanuki departs at dawn, concluding the visit harmoniously.

The name "Badger" likely originates from translation variance or regional interpretation, as tanuki belong to Japanese folklore and differ biologically from badgers.