外公的口琴 is a somber, low-energy track by 王笠人 from 王笠人首張同名全創作專輯, released November 4, 2018. It runs 4:05 at 125 テンポ (250 テンポ double-time) in G Major (Camelot 9B).

Find the テンポ and music key for any song with our テンポ and キー Finder.