Part of Lewis, Llanrhystyd Manuscripts,
The tune book of David Lewis, 1844, containing hymn-tunes by himself and by John Edwards, Penderlwyn, Morris Davies, Lewis Lewis, T[homas] Jarman, T. Jones, Trallwm, Brycheiniog and W. Griffith. Among the tunes by David Lewis is one for an 'englyn unodl union'.
Part of Lewis, Llanrhystyd Manuscripts,
A collection made by David Lewis in 1841 of hymn-tunes by himself, T. Evans, Abertawe, W[illiam] Williams, Caernarfon, 'J. R.' [John Roberts], Henllan, Charles James, Llanilar, D[aniel] T[homas] Williams ('Tydfylyn'), Thomas Edwards, Caerfallwch, John Morgan, John Williams, Dolgellau ['Ioan Rhagfyr'], W. Griffiths [or Griffith], R[osser] Beynon ['Asaph Glan Tâf'], J[ohn] Edwards, R. Williams and others; and English and Welsh airs, including 'Beti Brwyn', 'Nos Galan', 'Mentrwch Gwen', 'Codiad yr Ehedydd', 'Pe cawn i hon', 'Difyrrwch Gwŷr Gruffydd ap Cynan', 'Y dyddiau ni ddont yn ôl' and 'Mwynder Merch'.