Some of you may already know of the late great jazz euphoniumist Rich Matteson. He was a studio low brass player for years and taught jazz improvization at North Texas State. He was also one of the namesakes for the Matteson-Phillips Tuba-Jazz Consort.
There is a new CD release, and the announcement page includes a full-track download for free. Their motivation is probably to entice you to buy the whole album. And it ought to work - this is good stuff!!
The Sound of the Wasp
(Thanks for fsung for letting me know!)