While ripping a bunch of CDs, I hit upon The People's Choice Music by Dave Soldier and Komar & Melamid. Komar & Melamid performed web surveys to determine what instruments, vocal styles, lyrical content and emotional content people want in music, and then had Dave Soldier compose songs that would maximally satisfy (and maximally dissatisfy!) the "average" listener. I actually bought it as part of my project to acquire Vernon Reid's complete discography (he plays the guitar solo in the most wanted song -- the sarcastic final note kills me every time).
According to the CD jacket, "fewer than 200 individuals of the world's total population will enjoy" the most unwanted song, while the most wanted song is "a musical work that will be unavoidably and uncontrollably 'liked' by 72 +/- 12% of listeners". Apparently people really like the super cheesy type of R&B.
You can grab MP3s of the songs on Dave Soldier's web site. Nice!
Currently listening to: "Floating Seeds" by Ozric Tentacles and "Mass Hypnosis" by Sepultura