'Cultural diversity in music education in the National Curriculum at KS2 and its application in primary schools in Wales', PhD dissertation by Caryl Roese, University of Cardiff, 1999, which was abandoned.

Reports relating to music education in Caernarfonshire, minutes of the Sub-Committee of the county council; feedback from headmasters to a memorandum on music for schools; documents relating to music in schools throughout Wales in general; and related correspondence. J. Lloyd Williams is the author of a number of these reports and the file also includes a critical report by him on the role of Welsh music in the music departments of the University of Wales.

Notes and quotations from various sources relating mainly to folk songs and melodies. They include items relating to J. Lloyd Williams's proposed publication of folk songs for schools.

Lecture notes on the role of singing in education, delivered at Aberystwyth and Bangor, 1918-1919, together with related notes.

Notes, in journal form, containing J. Lloyd Williams's observations on the standard of music education, recorded during his visits to schools throughout Wales.