CD's for auditioning

Thanks for the inputs... just to clarify. I operate a small audio store and I am looking for CD's for our customers to audition... thats why i am asking :)

Keep the suggestions comming.

Products to be auditioned - speakers, amps, pre-amps, CD-players, cables.

Loreena McKennitt- The Mask and the Mirror(Celtic New Age)
Clifford Jordan- Live at Ethel's (Jazz)
McCoy Tyner- NY Reunion (Jazz)

Dead Can Dance "Into The Labyrinth" The "Yolunga" track

For bass, try the Stanley Clarke cd "East River Drive".

Eije Oue & Minnesota Symphony- Aaron Copland's 3rd symphony
Opening cut is Fanfare for the Common Man.

Oregon- Oregon in Moscow. Oregon recorded with Moscow Symphony Orchestra.

Chick Corea- Corea.Concerto- Check out Spain. Outrageous dynamics.

Shadowfax- Shadowfax Live