In music, a pulse is the heartbeat of a composition, but a pulse does not necessarily have to be regular. The Danish composer Simon Christensen studied the use of the pulse by four modern American composers: Charles Ives, Conlon Nancarrow, Steve Reich and Trent Reznor. Tributes – Pulse is his homage to these composers. Bill Morrison is responsible for the visuals: damaged found-footage shots that have their own pulse (and beauty).