To learn Once - Dealova chords, these are the chords to practise in sequence: Ab, C, Fm, Db, Bbm, Fm, Bbm, C, Bbm and Fm. Kick off your practice at a gentle 70 BPM, then escalate to the song's tempo of 140 BPM. With F Minor as the song's key, tweak the capo to cater to your vocal pitch and chord likes.