What composers do ...

I felt forced to do one for composers. See also the Version by Johannes Kreidler: http://www.kulturtechno.de/?p=7020

Image Sources (from top-left to bottom-right): http://davidandjennilyn.com/2011/04/10/garage-band/ / http://www.myspace.com/thelostkeyofhatetour/photos/3269148 / http://de.wikipedia.org/wiki/Norbert_Wiener / http://s613.photobucket.com/albums/tt213/thatstuffz/?action=view&current=angry-hobo.jpg&newest=1 / http://www.schoenberg.at / own manipulated screenshot + an awesome piece by brian ferneyhough comments