The Logos of Music 2.0 vs Logos of Music APIs 2013
Way back in 2006 Jadam Kahn (aka @rocketsurgeon) created this collage of Music 2.0 logos.
Compare that to the Music APIs of 2013 logos:
There's almost no overlap. Even the iTunes icon changed color. Thank goodness for the steady hand of MusicBrainz keeping things together for so long.