THE EXTREME MUSIC LIBRARY

I can't really tell you what the Extreme Music Library is about.
I think they offer music to professionals, like movie makers or companies who make advertisments.
Check out their website and be amazed:
www.extrememusic.com

Some of these compositions (or maybe even all of them) are also available on promotional CDs.
And now the fun part kicks in: Dweezil Zappa contributed a number of pieces to the Extreme Music Library, and these have been released on a number of CDs.

Data, or at least some of it, has been added to the United Mutations Archives.

• various artists: nu acoustic
      (2002, cd, uk, extreme music xcd073)

• various artists: nu acoustic two
      (2005, cd, uk, extreme music xcd117)