To learn 潘美辰 - 我曾用心愛著你 chords, focus on the sequence of these chords: Bbm, Eb, Ab, Cm, Fm, Cm, Db, Cm, Fm and Cm. To master the tempo, it's wise to start at 72 BPM before aiming for the song's 145 BPM. With Ab Major as the song's key, tweak the capo to cater to your vocal pitch and chord likes.