He then took up the position as organist at Guy's Hospital (in succession to Carey) in early 1913, supplementing his income with various freelance positions. These included teaching at Morley College (deputising for Gustav Holst), assorted choral conducting positions, and acting as accompanist to Carey, Wilson and the French soprano Jane Bathori-Engel. He also became known as a critic, writing for the "Blue Review", the "New Statesman", "The Daily Telegraph" and "The Times". In his "Grove" article, Hugh Taylor describes Denis Browne's criticism as "reveal a brilliant musical mind".