To learn Taeyeon - Happy chords, anchor your practice on these foundational sequence of chords - F, Bb, C, F, Dm, Bb, Gm and C. A good strategy is to initiate at 39 BPM and then accelerate to the track's regular speed of 80 BPM. To match your vocal range and chord inclination, adjust the capo in line with the key: F Major.