Llyfr tonau, [1796x1812], o eiddo Thomas Owens, yn cynnwys anthemau a salm-donau gan Griffith Griffiths, Edward Pugh, David Harries [?David Harris, Carno], John Williams, Dolgellau, William Wilson ac eraill. = The tune book, [1796x1812], of Thomas Owens, containing anthems and psalm-tunes by Griffith Griffiths, Edward Pugh, David Harries [?David Harris, Carno], John Williams, Dolgellau, William Wilson and others.