COH has been played over 40 times on NTS, first on 26 February 2013. COH's music has been featured on 40 episodes.

Ivan Pavlov (Иван Павлов) is a Russian-born sound artist and engineer who has lived in Sweden since 1995. After Pavlov moved to Sweden, he adopted the alias COH (pronounced "son") which can be read in Cyrillic as well as in Latin alphabet and means in Russian sleep or dream.