I’ve always been partial to this demo of the original version of the SWAM soprano sax, from way back in the day. I hate to say it, but the demo on SWAM’s own lead page is pretty terrible!

https://youtu.be/ZUxtA2MFkZQ

Then there’s this, Marco doing pretty good on a Roli…

https://youtu.be/72RrqWC3vWc

I particularly like the Roli as it introduces some pitch instability that’s harder to get on a regular keyboard. I think that’s the next thing SWAM need to work on… some kind of intelligent pitch micro-adjusting thing that would make each note a bit out of tune, but in a way it sounds natural.