Suffocation, an American death metal band, fused the predominant rhythmic styles of early death metal and grindcore, with complex song structures to start a new subgenre of music, considered brutal death metal by some. Suffocation is placed amongst peers Immolation, Incantation, and Morpheus (Descends) as being part of a genetic fragment of death metal known as "New York Death Metal", or "NYDM" for short.