To start learning Abba - Disillusion chords, centre your learning around these elemetal chords sequence: G, F#m, Am, D, Em, A, D, A, F#m and Em. I suggest starting at a calm pace of 71 BPM, and as you gain confidence, approach the song's BPM of 142. Adjust the capo based on your vocal range and chord preference, keeping the song's key of D Major in mind.