Chords for Gregorian Chant-Veni Creator Spiritus

Let's start jamming Schola Cantorum Magnificat - Pontifitium Inst. Musicae Sacrae - (In Nativitate Domine et cantus varii) Veni Creatur chords, practice the chord sequence Db, Abm, Ab, Abm, C and Ab. Ease into the song by practicing at 65 BPM before reaching the track's full tempo of 130 BPM. For a balanced pitch, adjust the capo with respect to your voice and the song's key: B Major.