Guitar and sound: acoustic or at least a pretty, clean electric. Actually works best with both.
Intro: Single note riff of R1
Single note riff, then the two patterns played at the same time with the words, single note riff again if it is not too redundant:
Structure: V - V(words) - R1 - R1(words) - V - V(words) - V(words) - etc... - End with R1 single note riff.
The repeats have to be judicious and appropriate - make it sound good, but not overly long or repretitive.
© Huw Powell