작별 (D key)

Spring will come again (E key)

Theme of Yoonsoo (B♭ key)

Good moments are always crule (E♭ key)

Bind you up in memory (E♭ key)

When will you come back to me (E♭ Key)

Dear Snow, Thee Fall Again (F key)

너의 기억 (B♭ key)

시대를 초월한 마음 (B♭, C key)

스물 한 살 (D key)