Let's start jamming 어른아이 - (드라마 커피프린스 1호점 삽입곡) Star chords, practice the chord sequence C, A, C, G and C. To build a solid grasp, start slowly at 42 BPM and then match the original tempo of 84 BPM. Adjust the capo based on your vocal range and chord preference, keeping the song's key of C Major in mind.