Following his period at Cambridge, Morrison soon embarked in the realm of music criticism, first writing for the Classical Music magazine in 1978.[2] In a few years, he gained two other posts, serving as a music credit for The Listener in 1982 and deputy editor of the Early Music journal in 1983.[2] He joined The Times as a music critic in 1984, and has been the paper's chief music critic since 1992,[2] succeeding music critic Paul Griffiths.[7] Morrison also edited the arts pages for The Times between 1989 and 1999.[2] Morrison "has long been admired for his penetrating cultural columns";[1] at both The Times (weekly) and in the BBC Music Magazine (monthly since 2004), he writes a column.[2][8] His column at The Times is "noted for its humour and passion",[4] while he was awarded "Columnist of the Year" in the 2012 Professional Publishers Association (PPA) for his column in the BBC Music Magazine.[8][9]
Morrison published a history of the LSO to coincide with the orchestra's centenary in 2004.[2][10] The book was entitled Orchestra: The LSO: A Century of Triumph and Turbulence and published by Faber and Faber.[8][4] In her review of the book, the journalist Charlotte Higgins, described its narrative as "somewhat teleological", but concluded that "Morrison [...] has delivered a pungent, immensely readable first book."[1]