Auf der englischen Wikipedia gibt es interessante Listen von musikalischen Spezialfällen:
http://en.wikipedia.org/wiki/List_of_music_considered_the_worst
http://en.wikipedia.org/wiki/List_of_songs_considered_the_best
http://en.wikipedia.org/wiki/List_of_controversial_album_art
http://en.wikipedia.org/wiki/List_of_silent_musical_compositions
http://en.wikipedia.org/wiki/List_of_songs_about_bicycles
http://en.wikipedia.org/wiki/List_of_songs_about_or_referencing_Elvis_Presley
(via Klangteppich)