Thanks for all your comments!
The Roland S-330 is the sax sound. I sampled a friend's Korg M1 sax samples (for the lower note ranges). For the higher sax
notes I used sax patch that I built on my DX7. All these sounds were sampled to the S-330 as raw as possible so that I could use the aftertouch and envelopes of the S-330 for expressive control. Believe it or not, I am still using my Roland S-330 (from 1987) as a bass and drum module for smaller local gigs and my Yamaha Dx7 (1984) as a second controller. I have to give credit to Roland and Yamaha for building durable gear! The K2000r is still working but the K2000 bit the dust a few years ago.