To learn Marty Robbins - Kaw-Liga chords, grasp the musical fabric of the song with this sequence - Em, E, A, E and B of chords. I suggest starting at a calm pace of 57 BPM, and as you gain confidence, approach the song's BPM of 114. With E Minor as the song's key, tweak the capo to cater to your vocal pitch and chord likes.