Harrison Birtwistle
This biographical article needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately, especially if potentially libelous or harmful. (January 2010) This article's tone or style may not reflect the encyclopedic tone used on Wikipedia. See Wikipedia's guide to writing better articles for suggestions. (January 2008) Harrison Birtwistle in 2008 Sir Harrison Birtwistle (born 15 July 1934) is a British composer.