Bettina Köster belonged to a group of Berlin artists named genius dilettantes, who, starting in 1980, performed in quick changing band-formations such as Liebesgier, Nachdenkliche Wehrpflichtige and Einstürzende Neubauten among others.

Wolfgang Müller from Die Tödliche Doris invented the characterizing term of the "genius dilettantes" in his book about the Berlin scene published at the Merve-Verlag.

As a lyricist Köster influenced succeeding girl Bands, such as Chicks on Speed, who released a cover version of Malaria's 1981 Hit "Kaltes Klares Wasser".

While researching Burma for the film, Köster came across material about the drug princess Olive Yang, laying the foundation for the thriller Mandalay Moon, which she wrote together with Martin Schacht, published 2007 by Rowohlt.

Since 2009, when "Queen of Noise" was published on Assinela Records, Vienna, Köster performs regularly with the Viennese drummer Ines Perschy in Clubs and on Festivals like Waregem in Belgium, Wave-Gotik-Treffen in Leipzig/Germany.