Recently attended the Capitol Audiofest and heard a lot of good music, but what do you take with you when checking out audio equipment? My standby album is Miles Davis' "Kind of Blue" ... for the following reasons: Although a 50+ year old recording, it still "puts me there", it still holds up musically, and I have heard it countless times on every type of system you can think of, from an iphone to $20K+ horns driven by OTL tube amps- you name it. Heard it played in about 6 rooms at CAF.
Others include Larry Coryell "Bolero" (acoustic guitar, great for dynamics) and (I'm not kidding) Screamin' Jay Hawkins "Old Man River" from "Black Music for White People"(also great for dynamics).
What is your "go-to" music for evaluating audio equipment and why?