KTL is a duo made up of Stephen O’Malley (Sunn O))), Khanate) and Editions Mego head Peter Rehberg (Pita), originally formed to create the music for a theater production titled Kindertotenlieder by Gisèle Vienne and Dennis Cooper. According to its creators KTL is "Threatening new collaboration taking in parallel worlds of Extreme Computer Music and Black Metal".