His first concert works, including two string quartets, appeared in the 1950s. But his first big success was with the large scale (35 minutes in length) cantata
King Herod, for soprano and baritone soloists, chorus and orchestra, composed for the
Llandaff Festival in 1965 and published by OUP. In 1968 he composed the
television opera The Rose Affair, setting a play by
Alun Owen that updates the story of
The Beauty and the Beast. He composed a second television opera,
A Christmas Carol (after
Dickens), for
Harlech Television in 1978, with a libretto by
John Morgan. The role of Ebenezer Scrooge was sung by Geraint Evans. His last composition was ''Mr Pitfield's Pavane'' (2000), an elegy for recorder and strings remembering
Thomas Pitfield, a fellow Bolton composer whom Kay met at the Royal Manchester College of Music. It has been recorded by
John Turner and the Royal Ballet Sinfonia. ==Other activities==