A miscellany containing a metrical dissertation on Psalm 8, verses 3 and 4, followed by a poem dealing with the seven planets; 'Darlleniad diwiol'; 'Carol i Fair', beginning 'Yngwledydd Judea yr oedd Zackaria'; a part of a carol by Mathe[w] Owen; a 'cywydd', a 'dyri', and a carol by Huw Morus; a 'dyri' by Edwart Rolant ('o'r bala'); 'Erapater dros byth a gaed o lyfr Thomas Jones ... 1701'; farm notes for 1702; etc. -- Much of the volume is in the hand of Richard Roberts, whose name, with the date 'Mai 21, 1699', appears on one folio. At the end of the manuscript is the note: - 'Llyfr y coch o Hergist yn y glasgoed y mae ef'.

'Carolau', 'cerddi', 'cywyddau', and a few 'englynion', most of them transcribed by John Beans. Among the poets represented are Huw Morus, Edward Morus, Ellis Cadwaladr, Edward Samuel, Robert Hwmffres, Dafydd Morus, Gruffudd Edward, Mathew Owen, Robert Sion Owen, Ellis Rowland, Edward Rowland, William Roberts, Jonathan Hughes, William Thomas, Richard Abraham, Cadwaladr Roberts, Ned Lloyd ('o'r Bala'), Thomas William, Evan Thomas, Ellis Roberts, Arthur Jones ('o Langadwaladr'), John Jones, John Parry, Dafydd Puw Rowland, John Hughes, Ellis Roberts ('Elis y Cowper'), Morus Roberts, John Evans, Ellis ab Ellis, Thomas Jones, Derwas Griffiths, Rowland Hughes, Sion Hwmffre, Hugh Jones (Llangwm), John Cadwaladr ('o'r Bala gunt and ynawr athraw ysgol yn Llangwm'), - Lewis ('curad Cerrig y Drudion'), Lewis Morris ('Llewelyn Ddu o Fôn), Sion Tudur, Wiliam Phylip, John Davies ('Sion Dafydd Las'), Maredudd ap Rhys, etc.

Miscellaneous letters, 1913-1934, mostly addressed to Philip Thomas, relating mainly to his involvement in local eisteddfodau and musical events. Included are letters and papers relating to Neath Harmonic Society, 1926 (ff. 34-36), and the 1933 Welsh Calvinistic Methodist Parliamentary Bill, 1931 (ff. 47-9); verses relating to the Mari Lwyd (f. 1); a printed programme of service for Central Church, Chicago, 1922 (ff. 11-13); Thomas's adjudication for the choral competition at the Swansea National Eisteddfod, 1926 (ff. 37-41); a printed leaflet for Haslemere Music Festival, 1934 (ff. 60-61); and the tune and words of a Welsh Christmas Carol (f. 53) and of a Welsh folk-song (ff. 64-66).

The music tune book of Griffith Edwards, Rhydymain, Merioneth, 1846, containing copies of anthems by D[avid] J[enkin] [Dafydd Siencyn] Morgan, J[ohn] Ambrose Lloyd, Edward Stephen Jones ['Tanymarian'] and Ellis Roberts; anthems on temperance and scriptural topics; hymn tunes by R[ichard] Mills ['Rhydderch Hael'], T. Jones, R[osser] Beynon ['Asaph Glan Tâf'], John David Edwards, R. Williams and others; carols, glees and songs, including 'Ymddiddan rhwng Bardd a Henwr', 'Plygeingan Owen Alaw yn Eisteddfod Caernarvon, 1862', 'Cân Plant y Morwr', 'Ymson Myfanwy', 'Blottun Du', 'Bryniau fy Ngwlad', 'Y Mud a'r Byddar', 'Y Dderwen' and 'Y Blodeuyn Olaf'.

Transcripts, mainly by Richard Lloyd, minister of the Welsh Calvinistic Methodists at 'Beamaris' about 1818, of cywyddau, englynion, odes, and carols by John Roberts (Sion Lleyn) and Rhisiart William Dafydd, and transcripts of letters to Richard Lloyd relating to Welsh Calvinistic Methodist affairs in Anglesey, 1828-1834.

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'.