Papers, 1949-1955, relating mainly to Wyn Griffith's libretto of Arwel Hughes's opera, 'Menna'; together with the English words, [?1930], of a song set to an old harp melody.

The series comprises papers, [1952]-1987 (with gaps), including manuscript and typescript drafts, relating to the school musical 'The burgomaster's daughter' and the opera 'The Beach of Falesá', for which Glyn Jones wrote the libretto.