To start learning Jona - You chords, build your understanding on these basic chords - D, Bm, A, E, Eb, Dm, D, E and A in sequence. To master the tempo, it's wise to start at 34 BPM before aiming for the song's 70 BPM. Given the song's key of A Major, adjust the capo to align with your vocal range and chord preference.
