Your favorite demo songs

What are your favorite demo songs that you listen to at speaker stores for each of the following parameters? Below is my list:

1) Female Vocal - Eva Cassidy's Autumn Leaves
2) Male Vocal - Coldplay's Scientist
3) Imaging - Ani Difranco's Everest
4) Bass - Vitamin C's Graduation (Friends Forever)
5) Instrument Placement - Still trying to find one

If there are other parameters that you listen for please list them with the appropriate song.

jeweltone