Notes relating to Welsh music, and copies, mainly by John Jenkins, of official papers and letters relating to British naval affairs in the West Indies.

Music manuscripts, notebooks, papers relating to the National Museum of Wales and the University of Wales, and other miscellaneous material belonging to Dr Mary Davies (1855-1930) and her husband, W. Cadwaladr Davies (1849-1905). Amongst the papers is a later copy of a collection of Welsh airs, compiled and arranged by 'Orpheus' [James James] for the Eisteddfod at Llangollen, 1858 (now NLW Minor Deposit 150B).

Papers, 1922-1940, reflecting Wyn Griffith's interest in early Welsh and English music, comprising research material, articles and press cuttings, mainly relating to Arnold Dolmetsch and the manuscript of Robert ap Huw (BM Add MS 14095).

Letters to Wyn Griffith, 1911-1933, from his father, John Griffith, relating to personal and family matters and also to Welsh music. Typescript copies of a few of the letters are included at the end of the sequence.

The fonds comprises material dating between 1963 and 2001, consisting mainly of correspondence, [c.1970]-2001, between the Federation and various musical societies on matters of financial aid and membership fees, providing a valuable overview of a wide range of musical activities throughout Wales. It also contains correspondence with other arts organisations and bodies, both national and regional, copies of rules, constitutions and accounts of the various constituent societies as well as programmes, leaflets, posters and other printed ephemera, covering the period from 1963 to 2001. Several files contain papers relating specifically to the Federation's internal committees. Only one file relates to the Federation's own administration.

One of four volumes containing press cuttings of articles on 'Music in Wales' contributed by D. Emlyn Evans to the South Wales Weekly News from 1899 to 1912.

Letters addressed to David Lewis, mainly on matters relating to Welsh music, 'eisteddfodau' and the bibliography and biography of music. The correspondents are Henry Frowde, London, 1908, Thomas Gee, 1875-1887, David Griffiths ('Clwydfardd'), 1887, W[illiam] Griffiths ('Ifander'), 1880, W[illiam] Harris, Aberdare, 1885, W[illiam] Harries, Cefncoed, 1895, D. Eiddil Jones, Cefncoed, 1896-1897, and John Ceiriog Hughes ['Ceiriog'], 1861-1864.

Miscellanea mainly in the hands of John Jenkins and Walter Davies and relating to the history, literature, ecclesiastical affairs, and music of Wales; a document relating to the collation of Richard Humffreys to the living of Aberhavesp, February 21, 1628 9; a fragment in the hand of Edward Lhuyd; a letter from Maudline Nanne to Robert Vaughan, May 24, 1636; etc.