Hi Chas,
I do sort of recognise the tune, but no idea what it’s called.

Modesty becomes you, haha.
Seriously though, I’ve obviously had some great sax, and trumpet sounds on my Korg Pa keyboards , including the PA 4x, BUT, I could never get that sort of realism in my sax/trumpet melodies.
No doubt you have to start with a reasonably good quality sound, but, tend to think it’s technique that really matters. You’ve got it.😁