To learn Pentatonix - (Deluxe Version) Ref chords, these are the chords to practise in sequence: Ab, Ebm, B, Bbm, Ebm, Gb, B and Ab. A good strategy is to initiate at 71 BPM and then accelerate to the track's regular speed of 144 BPM. Adjust the capo based on your vocal range and chord preference, keeping the song's key of Eb Major in mind.