To jam and learn Raffi - Lets Play chords, your primary focus should be mastering these chords sequence: D, Em, F#m, A, Em, F#m and Em. To master the tempo, it's wise to start at 46 BPM before aiming for the song's 92 BPM. Adjust the capo based on your vocal range and chord preference, keeping the song's key of A Major in mind.