To start learning Busted - 3Am chords, build your understanding on these basic chords - A, Bm, G, D, B, Em, G, B, G and Em in sequence. To master the tempo, it's wise to start at 76 BPM before aiming for the song's 153 BPM. Set the capo considering your vocal range and favored chords, aligned with the key: D Major.