Henning Christiansen (Copenhagen, 1932 – Isle of Møn, 2008) was a Danish composer and an active member of the Fluxus movement. He studied at the Royal Conservatory of Music in Copenhagen and at the more liberal Ex-School (Eks-Skolen) embracing soon its radical approach in study and creation of art and developing his own musical thinking. In 1962 he attended the George Maciunas’s International Festspiele Neuster Musik in Wiesbaden, where he probably experienced an epiphany that caused a significative shift in his artistic practice and musical composition.
Musik Essayistik is the combined reissue of twin releases Fluxyl (1983) and Fluxid(1984) – two of the most obscure and enigmatic records in Christiansen's discography – previously issued separately by Borgen Records in Denmark. Four minimal pieces exploring the clash between instrumental composition-improvisation and pre-recorded real sounds.