COSMIC PULSES is the 13th “hour” of Stockhausen’s originally-planned 24-part cycle KLANG (“SOUND”) which is based on the 24 hours of the day. This electronic work is composed of 24 layers of synthesizer-generated melodic material, with each layer having a different speed and pitch register. The layers enter one by one, starting from the lowest/slowest layer, and go up in sequence to the highest/fastest layer. After a period of several minutes where all 24 layers are active, the layers begin to individually drop out, again starting from the lowest layers and moving upwards (gradually leaving just the higher/faster layers). This “draw down” is about twice as fast as in the “build-up”.