FWIW we do that song a lot......
I have the best luck with using the major pentatonic scale.
We do it in the key of A.
Basically root, M3rd, 5th, 6th, 8th(octave), 6th, 5th, M3rd, repeat, depending on root chord. In the short areas stay with the root, M3rd, 5th.
Stick with keeping that one simple. Don't overthink it.
Jerry A.K.A. "Thumper"
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