To learn John Travolta, Olivia Newton-John - (From Grease) The Grease Mega-Mix chords, grasp the musical fabric of the song with this sequence - A, D, G, E, G, F and C of chords. Kick off your practice at a gentle 79 BPM, then escalate to the song's tempo of 159 BPM. Adjust the capo based on your vocal range and chord preference, keeping the song's key of C Minor in mind.