list your fave 'reference' CD or SACD. Here's mine;
Jamie Cullum - twentysomething (2004) Verve.
One of my favorites is "The Plow That Broke the Plains", by Thompson.
There are also several other works on the CD, which is on Vanguard.
Tracy Chapman -S/T 1988 is another fave. Very well recorded.
AC/DC - Back in Black.
Nirvana 'Unplugged' from 1994.
Van Halen s/t from 1978.