Schwitters used the word MERZ to describe the style of his work, derived from the second syllable in the German word for commerce.
Iconoclastic but not malicious or mean-spirited; this is how Kurt describes the ground-breaking Dada-period artist Kurt Schwitters. This lecture delivered at UCLA in 1965 is straight-up art history; for those of you who are interested in the history of Dada and its relationship to art and life in the world of the 1920s, this recording provides a stream of Kurt's observations, understandings and insights. He does this as he describes a series of projected slides, their content, style and context. Picasso, Braque, Moholy Nagy and the cubists also are discussed.
The recording runs about 45 minutes and takes a few moments to load.
Here are some links associated with the work of Schwitters:
Wikipedia (Schwitters)
Wikipedia (Art Style - Dada/Merz)
Google images