To learn P.E - (hed) The Box chords, your practice should emphasize these chord progressions: Bm, B, Bm, B, F, B, F#, B, E and B. A good strategy is to initiate at 70 BPM and then accelerate to the track's regular speed of 140 BPM. Considering the song's key of B Major, position your capo to suit your vocal and chord preferences.