To learn Runrig - The Old Boys chords, grasp the musical fabric of the song with this sequence - E, Gb, Ab, B, E, Ab, E, Bbm, Eb and Ab of chords. I suggest starting at a calm pace of 80 BPM, and as you gain confidence, approach the song's BPM of 160. Adapt the capo setting considering your vocal range, with reference to the key: Ab Major.