songanalysis analyzes a song in WAV, Ogg Vorbis,
or MP3 format and produces an output consisting of
the volume differential, the relative strength in
each frequency band, and the tempo. This is useful
if you want to build something that lets you find
out whether you have duplicate files, if you need
to find out the tempo of your songs, or if you
need to find similar songs according to how they
sound.
