Thermodynamics of a rock show

Dave Rat has written a great article for ProSoundWeb about the thermodynamic factors affecting live sound for concerts. Dave is a very experienced mix and system engineer who has toured with some of the biggest rock bands in the world. Check out the article at: http://www.prosoundweb.com/article/in_the_heat_of_the_night_the_thermodynamics_of_a_rock_show/