Technical Death Metal is a subgenre of death metal that emphasizes complex musical structures, intricate guitar work, and advanced drumming techniques. Bands often incorporate unusual time signatures, rapid tempo changes, and elaborate solos, showcasing their technical proficiency. Lyrically, Technical Death Metal often explores themes such as science fiction, philosophy, and existentialism, setting it apart from more traditional death metal's focus on horror and violence. Notable bands in this genre include Necrophagist, Obscura, and Spawn of Possession, each contributing to the evolution and popularity of this intricate style of music.