To learn Nikos Vertis - Ela chords, these are the chords to practise in sequence: Gb, Bbm, Ab, Gb, Bbm, Db, Ab and Bbm. A good strategy is to initiate at 62 BPM and then accelerate to the track's regular speed of 124 BPM. With an eye on the song's key Bb Minor, set the capo that best suits your vocal range.