Best tracks to "show off" your system

Something I know my listening friends would like to listen to.

When I'm listening critically for system strengths,being an imaging person,I choose something polyphonic or unaccompanied human voices.

anything by steely dan.

Bobby Miles/Troiki Gurtu

Amazing synth (Miles), percussion (Gurtu), various acoustic instruments all meshed together in a terrific progressive/jazz/world album

This CD has amazing sound and when you consider Gurtu plays percussion it is high-lighted in a terrific way. Extremely detailed and huge soundstage.

Kray, good choice - Getz/Gilberto

Sdcampbell (or anyone else)- Any clue as to whether there was ever a CD version of Thelma Houston's "I've got the music in me"? You are right about the Thelmas's vocals. I recall hearing the LP 20 years ago at a friends house and have looked for it since then but with no luck.

I don't get much of chance to "show off" to others, but when trying to impress myself, I go with Ten Years After: A Space in Time played really, really loud.

Another would be The Who: Who's Next.