Audio Flowers: visualising the sound of music

Last Fm tries to visualize the character of a song by using the three categories harmony, rhythm and timbre. The resultis a flower representing the songs structure for each category.

Example:

Kool & the Gang - Fresh
As you might expect from a classic disco song, Kool & the Gang's hit Fresh doesn't have much rhythm variety going on: the red rhythm petal is quite slim. This is not to say they don't groove, it's just the rhythm pattern does not change much over the course of the piece. There is some melodic and harmonic variety going on on small time scales – the green harmony petal is quite thick close to the origin. Towards the tip the green petal goes very thin though, which indicates that the general tonality does not change much over the whole piece – no cheesy key changes there.