question: Where does the composer of film The Top Of His Head work at?
context: [["Christie MacFadyen", ["Christie MacFadyen is a Canadian actress best known for appearing in the film\" The Top of His Head\"."]], ["The Top of His Head", ["The Top of His Head is a 1989 Canadian comedy-drama film written and directed by Peter Mettler and starring Stephen Ouimette as Gus, a satellite dish salesman whose life is turned upside down when he meets Lucy (Christie MacFadyen), a politically radical performance artist.", "The film's soundtrack,", "\"The Top of His Head\" was written and composed by Fred Frith.", "Jane Siberry also contributed a song, \"This Old Earth\", which was nominated for Best Song at the 1990 Genie Awards and appeared on her 1989 album \"Bound by the Beauty\" under the alternate title \"Something About Trains\"."]], ["Thomas Morse", ["Thomas Morse( born June 30, 1968) is an American composer of film and concert music."]], ["Abe Meyer", ["Abe Meyer( 1901 \u2013 1969) was an American composer of film scores."]], ["Fred Frith", ["Jeremy Webster \"Fred\" Frith (born 17 February 1949) is an English multi-instrumentalist, composer, and improvisor.", "Probably best known for his guitar work, Frith first came to attention as one of the founding members of the English avant-rock group Henry Cow.", "He was also a member of the groups Art Bears, Massacre, and Skeleton Crew.", "He has collaborated with a number of prominent musicians, including Robert Wyatt, Derek Bailey, the Residents, Lol Coxhill, John Zorn, Brian Eno, Mike Patton, Lars Hollmer, Bill Laswell, Iva Bittov\u00e1, Jad Fair, Kramer, the ARTE Quartett, and Bob Ostertag.", "He has also composed several long works, including \"Traffic Continues\" (1996, performed 1998 by Frith and Ensemble Modern) and", "\"Freedom in Fragments\" (1993, performed 1999 by Rova Saxophone Quartet).", "Frith produces most of his own music, and has also produced many albums by other musicians, including Curlew, the Muffins, Etron Fou Leloublan, and Orthotonics.", "Frith is the subject of Nicolas Humbert and Werner Penzel's award-winning 1990 documentary \"Step Across the Border\".", "He also appears in the Canadian documentary \"Act of God\", which is about the metaphysical effects of being struck by lightning.", "Frith has contributed to a number of music publications, including \"New Musical Express\" and \"Trouser Press\", and has conducted improvising workshops across the world.", "Frith's career spans over four decades and he appears on over 400 albums.", "He still performs actively throughout the world.", "Frith was awarded the 2008 Demetrio Stratos Prize for his career achievements in experimental music.", "The prize was established in 2005 in honour of experimental vocalist Demetrio Stratos, of the Italian group Area, who died in 1979.", "In 2010 Frith received an honorary doctorate from the University of Huddersfield in West Yorkshire, England in recognition of his contribution to music.", "Frith was Professor of Composition in the Music Department at Mills College in Oakland, California until his retirement in 2018.", "He is the brother of Simon Frith, a music critic and sociologist, and Chris Frith, a psychologist at University College London."]], ["Henri Verdun", ["Henri Verdun( 1895\u20131977) was a French composer of film scores."]], ["Walter Ulfig", ["Walter Ulfig was a German composer of film scores."]], ["Bert Grund", ["Bert Grund( 1920\u20131992) was a German composer of film scores."]], ["Alonso Mudarra", ["Alonso Mudarra( c. 1510 \u2013 April 1, 1580) was a Spanish composer of the Renaissance, and also played the vihuela, a guitar- shaped string instrument.", "He was an innovative composer of instrumental music as well as songs, and was the composer of the earliest surviving music for the guitar."]], ["Amedeo Escobar", ["Amedeo Escobar( 1888\u20131973) was an Italian composer of film scores."]]]
supporting_facts: [["The Top of His Head", 2], ["Fred Frith", 15]]
evidences: [["The Top of His Head", "composer", "Fred Frith"], ["Fred Frith", "employer", "Mills College"]]
answer: Mills College