On 1 January 1936, he took up the position of Director of Music at the
Abbey Theatre Dublin, a position he retained until he was fired in 1948. His duties mainly consisted of leading the piano trio which bore the title "The Abbey Orchestra" in music during the intervals of productions. In 1936 he composed what is today his best-known composition, the String Quartet in C Minor, but it was not premiered until 1948 when it was performed by the Martin Quartet in the
Wigmore Hall, London. This was followed by the
Symphonic Ballad (1937), the Suite of Irish Airs (1937),
Spring Nocturne (1938),
Songs from Prison (1941) and the Lyric Movement for Strings (1942). May effectively ceased original composition at this point, the major exception being his late orchestral work
Sunlight and Shadow, which was premiered in January 1956. Later work was confined to arrangements and the revision of earlier compositions. Throughout his life, May suffered from significant mental health issues which resulted in hospitalisation. He also experienced
otosclerosis, as a result of which May gradually became increasingly deaf. In addition, he suffered from severe
tinnitus with constant ringing noises in his head. In later life, he became homeless for a time due to alcoholism and slept at night in Grangegorman Asylum, Dublin. He was rescued by some friends led by
Garech Browne whose record company
Claddagh recorded the String Quartet in 1974. Throughout his career, May was an advocate of better musical education in Ireland and expressed his views on this and other musical matters through the medium of
The Bell, a monthly journal dealing with the arts. He was a co-founder, along with
Brian Boydell and
Aloys Fleischmann, of the
Music Association of Ireland (now "Friends of Classical Music"), set up in 1948 to promote art music as an integral part of the cultural life of Ireland. Later he became a member of
Aosdána. He lived for the last years of his life at Clontarf orthopaedic hospital, Dublin. He died at the age of 74 and is buried in
Mount Jerome Cemetery. ==Music==