Tune book, late eighteenth century, containing psalm-tunes and some hymn-tunes, with some accompanying words in Welsh. Accounts and memoranda added, late eighteenth and early nineteenth centuries (ff. 51-62), including 'prophwydoliaeth Myrddin wedi ei chyfansoddi ar fesur cerdd yn y flwyddyn 1668' (f. 51), and 'the account of the stems that I have made in the work of Careg y mwyn December 1790' (ff. 60 verso-1).

Tune book, first compiled by 1796, containing psalm-tunes, hymn-tunes and anthems, including items attributed to John Williams, Dolgellau (ff. 6 verso-7, 11 verso-12, 17 verso-18), William Wilson (ff. 1 verso-3, 4 verso-5, 7 verso-9 verso, 10 verso-11, 12 verso-13, 16 verso-17, 19 verso), David Harris, Carno (ff. 5 verso-6), Robert Griffith, Caernarfon (ff. 13 verso-14), and Lewis Morris (f. 21 (defective) and inside back cover); accompanying words in Welsh where given.

A miscellaneous collection of hymn-tunes, psalm-tunes and anthems, most attributed to Welsh composers, probably first compiled in the early nineteenth century but with manuscript and printed additions up to c. 1900 (watermarks 1817 (f. 34), 1825 (f. 59), 1829 (f. 73), 1835 (f. 27); ff. 41, 45 are printed), and including works attributed to John Williams, Dolgellau (ff. 8, 10 verso-12 verso, 40 verso) and Evan Davies, Llanymddyfri (ff. 25 verso-6). Accompanying words, where present, are in Welsh.