A collection, c. 1834, by Ffoulk Robert Williams (Eos Llyfnwy, Llanrug) (1774?-1870), entitled Llyfr Cerddoriaeth o Gerddi Sion, A Gwir folianwur yr Arglwydd, containing anthems, hymn-tunes, carols and old airs written by himself and also Edward Jones (Dolydd Byrion, Cricieth), John Williams (Ioan Rhagfyr) and others; also included are triads, ballads and miscellanea.