He served as representative for musicians such as Pink Floyd. His company, the Bryan Morrison Agency, became one of the leading London booking agents for R&B and progressive rock, as well as organising tours for US acts. Eventually Bryan had the exclusive booking rites for clubs like Blaises, the Cromwellian and the Revolution, in Bruton Street, Mayfair. Among other notable bands he represented were Fairport Convention, Incredible String Band, Tyrannosaurus Rex, The Pretty Things, the Deviants and the Pink Fairies.
He developed a passion for polo after he learnt to play at Ham Polo Club in London. For a short while he was the clubs president. Later Bryan founded his own polo club The Royal County of Berkshire Polo Club. He died in September 2008 following a polo accident that left him in a coma.