To start learning Len Barry - 1-2-3 chords, delve into these chords sequence to get the song's feel: C, Bb, C, F, Fm and C. I suggest starting at a calm pace of 63 BPM, and as you gain confidence, approach the song's BPM of 127. With an eye on the song's key F Minor, set the capo that best suits your vocal range.