OK, I have now been motivated to finish tweaking my new harmonica and give this a go with the melody track.
The first half of this is me playing the melody and the second half is the harmony bit with me simply chugging chords in the background (I turned down the volume a bit to keep myself in the background on the rhythm). Please note that there are rough edges to this and that I only did a few takes before saying “fine, this will do”, so the final product will hopefully be nicer.
I’ve been toying around with the idea of doing some improv on the second A and B parts. We’ll see how that goes. More practice required…