To learn Olivier Cheuwa - Ça Ira chords, your practice should emphasize these chord progressions: G, C, D, G, Em, Am, D, G, Em and G. Kick off your practice at a gentle 39 BPM, then escalate to the song's tempo of 78 BPM. Given the song's key of G# Major, adjust the capo to align with your vocal range and chord preference.