 A related book series titled Bücher der Reihe was begun, but only one title ever appeared in it, Herbert Eimert's "Grundlagen der musikalischen Reihentechnik" .The journal, whose title means "The Row" or "The Series", owes its genesis to the founding of the electronic music studio of the Nordwestdeutscher Rundfunk (NWDR) in Cologne (later WDR) under the influence of Werner Meyer-Eppler, and the realisation that technology was becoming an important element in the work of younger composers .The contributions from composers working in the studio were frequently based on their projects there, and in the early stages of competing with the radio-play department for resources, Eimert found having such a journal useful.