A copy of the fifth edition of the Welsh Church Tune & Chant Book by Thomas Jones, rector of Llanengan, presented by the author to David Lewis, 1866, with manuscript notes by the latter, a translation by William Williams, vicar of Llanrhaeadr-ym-Mochnant, of a hymn ('Loywaf o'r ser sydd yn britho'r ffurfafen'), and a copy of the hymn 'Paradwys Duw'.

A collection of hymn-tunes, anthems, chants, carols and other songs made by David Lewis, 1845, including hymn-tunes by the compiler, by J. Hughes, Alltlwyd and G. Griffiths, Aberafon; and two waltzes: 'Morgiana in Spain' and 'The King of Rome'.

A collection of hymn-tunes and chants made by David Lewis, 1839. Most of the tunes are unsigned. Signed tunes include works by William Pugh and T[homas] Jarman. Some of the titles have territorial significance, e.g. 'Corus Llanrhystid' and 'Difyrrwch Plant Carno'.