Hi KLB,

You are finding out that to get better MIDI sounds you need to spend money. Some sounds in the low end of the MIDI scale, like those that come with BiaB, are OK but others are just plain awful. As you start getting better MIDI sound sources you will realize that those OK sounds won't cut it anymore.

To continue John's message the best sax sounds are from audio modeling: https://audiomodeling.com/

Another good sax and trumpet source is VG Trumpet:
https://vgtrumpet.com/

One of the best trumpets is from sample modeling:
https://www.samplemodeling.com/en/products_trumpet.php

None of these require additional purchases.

A work of warning. As John said you can get excellent emulations using MIDI. However that can only be done with a knowledge of MIDI, especially Continuous Controllers (CC). You will need to study the instrument you want to emulate then learn what CCs to use to accomplish it. Don't let this scare you. It really isn't that hard. The main point here is that if you take a BiaB track, say a sax, use an expensive sound source but don't learn MIDI CCs then it will still be a poor sounding, static track.

Good luck.

I'm no longer allowed to go caroling at the psych hospital.
I guess Do You Hear What I Hear was a bad song choice!

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware