Two card indexes. The first and longer sequence is arranged alphabetically by title of songs/airs with detailed references to printed collections such as the works of John Parry, Edward Jones and Nicholas Bennett, and some manuscript collections such as Ifor Ceri's 'Melus Seiniau'. The sol-fa notation of first lines is often included. The second sequence, again in alphabetical order by title, includes references to various sources in which the songs or airs are named, including J. H. Davies's 'Bibliography of Cerddi' and Bangor Library holdings.
Material relating to the manuscripts of John Jenkins ('Ifor Ceri'), compiled by J. Lloyd Williams and including a list of some 258 tunes which Ifor Ceri sent to Bardd Alaw, 1820 and 1826; a catalogue of Ifor Ceri papers at the National Library of Wales; and an index comparing the location of tunes in the Ifor Ceri Manuscripts, The Welsh Harper and Alawon fy Ngwlad.
A number of hymn tunes, psalms and related notes and press cuttings, [1840], [1906x1930], mostly in J. Lloyd Williams's hand but also including notes by Mary Davies and a few related letters, 1918-1929, from others. Notes of a lecture entitled 'Caniadaeth y Cysegr', delivered at Aberystwyth in 1926, are also included, together with a reference to a folk song in the Ifor Ceri MSS.
Manuscript and printed scores, together with related correspondence and papers, 1899-1938, relating to the cantata 'Aelwyd Angharad' by J. Lloyd Williams, words by Llew Tegid.
Two manuscript vocal scores, two photocopies with annotations, overture score and drafts, and a few instrumental parts; together with copies of a number of Welsh airs.
A synopsis of the proposed three volumes, draft copies of the first and part of the second volume, typescript copies of the introductory chapters; together with possibly earlier drafts of chapters 1 and 2; a letter, 1936, from T. Gwynn Jones relating to the work, and miscellaneous notes.
Papers relating mainly to the harpists John Parry and Ifan Williams, including letters from Bob Owen, Croesor, and Cybi, 1943, and miscellaneous notes and quotations from various sources.
Incomplete outlines of four series of lectures delivered by J. Lloyd Williams to classes at Aberystwyth, 1929, Bala, 1928-1929, Blaenau Ffestiniog, 1927-1928, and Trawsfynydd, 1928-1929. The topics include the history of Welsh music, congregational singing and folk singing. Two short essays by a member of the Trawsfynydd class, 1927, relating to the gypsies of Llangwm, are also included.
Lecture notes relating to Welsh folk songs and folk tunes, including two series delivered at Bangor, 1934 and 1935, Coedpoeth, 1937, Llangefni, 1940, and a lecture entitled 'Neilltuolion Alawon Gwerin Cymru', undated but apparently delivered at Cardiff.
Press cuttings, [1921x1939], relating mainly to the history of music in Wales, including a series of articles on 'Are the Welsh Musical?', 1931, by T. Hopkin Evans; press cuttings concerning the 'Welsh Week' at the Wembley Exhibition in 1924; and lecture notes and quotations relating to the virtues of Welsh as a language for singing.
A few short biographical notes, mainly relating to musicians, compiled by J. Lloyd Williams from various sources; and other notes relating mainly to music in Wales, possibly including suggestions for items for Y Cerddor.