| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 978-0-900426-00-1 | W.S.Gwynn Williams · T.G. Jones | Christmas Bells: Carols in Welsh and English | |
| 1971 | 978-0-900426-01-8 | W.S.Gwynn Williams | Welsh National Music and Dance |
| 1999 | 978-0-900426-60-5 | John Hywel | Caneuon Enwog Cymru / Famous Songs of Wales 1: v. 1 |
| 2002 | 978-0-900426-69-8 | Dilys Elwyn-Edwards · R. Williams Parry | Caneuon y Tri Aderyn / Songs of the Three Birds: Solo Song for Soprano or Tenor with Piano Accompaniment |
| 2005 | 978-0-900426-76-6 | Sioned Webb | Caneuon Enwog Cymru / Famous Songs of Wales 2: v. 2 |