A strange tune this one. Each time the theme rolls through it goes up by a semitone. To make it easier to remember, I’ve kept pretty much the same arrangement each time through (rather than going for the easiest arrangement each time).
The twiddly bits go a bit high, so you’ll need to play it on a tenor. I’ve made a few changes to the tune: one of the twiddly bits is lowered an octave and I’ve sliced a bit off the end.