To learn Joaquin Sabina - Ay Rocío chords, focus on the sequence of these chords: Bm, E, D, A, D, Bm, E, A, Bm and A. I suggest starting at a calm pace of 79 BPM, and as you gain confidence, approach the song's BPM of 158. With A Major as the song's key, tweak the capo to cater to your vocal pitch and chord likes.