Tommy. 'Nid ar fore hafddydd tawel'. (Elfed),
281/1. Autograph copy. [D]. 281/2-3. Gwilym Thomas copies. [C]. 281/4-6. Gwilym Thomas copies. Music only. [C]. 281/7-9. Gwilym Thomas copies. [D]. 281/10-14. Five sol-fa copies. [C]. 281/15-19. Five sol-fa printed copies. [C]. 281/20. Five sol-fa printed copies. [D]. 281/21. A first violin part. Gwilym Thomas copy. [C].
Tone pictures. Rough drafts. ?for pf. [D],
'Towyn yn ei fedd tawel'. (Ifan Afan),
184/1-3. Three Gwilym Thomas copies. [D]. 184/4. Two folios containing a further Gwilym Thomas copy, words missing, and also a Bohemian dance and a reel, copied by Evan Thomas.
'Tra'r byd yn ei ddagrau'. (Parch. J. Owen Jones. 'Hyfreithon '),
318/1-3. Gwilym Thomas copies. [C]. 318/4. Gwilym Thomas copies. [D]. 318/5. Autograph copy. [D]. 318/6. Music only. [D].
Twilight, (John Masefield). Vocal monologue with orchestra,
76/1. Pf. part, with accompanying words. Gwilym Thomas copy. [C]. 76/2. Pf. part, with accompanying words. Autograph. [C]. 76/3. Pf. part, with accompanying words. Evan Thomas copy. [C]. 76/4. Orchestral score. Gwilym Thomas copy. [C]. 76/5. Set of orchestral parts. [C].
Two folios containing solo ? cello parts for hymns by other composers. Evan Thomas copy. Also containing rough draft of Berceuse for Violin (No, 9]. [D].
Two MS music folios containing solo vocal parts of Love [No. 119], Violets [No. 151], Rock-a-bye [No. 215]. Gwilym Thomas copies. [D].
Two MS music folios containing solo vocal parts of The Vine [No. 113], The First Prayer [No. 111], 'What shall we do Cynthia?' [No, 105], Oh Thomas Moore [No, 128], Suogan [No. 182 ], Once in the World's First Prime [No. 166]. Gwilym Thomas copies. [D].
Typescript copies of the words of six of Afan's hymn tunes,
Typescript folios of MS of Afan, a Welsh Music Maker,
Unidentified hymn. Autograph. [D],
Unidentified hymn. Gwilym Thomas copy. [D],
Vesper. 'Saviour of the contrite, heal us',
257/1. Autograph copy. [D]. 257/2. Gwilym Thomas copy. [C].
16/1. [First] viola study. Autograph. [B]. 16/2. [First] viola study. Incomplete. Autograph. [B]. 16/3. 'Second Study for Viola'. Incomplete. Autograph. [B]. 16/4. 'Second Study for Viola'. Incomplete. Autograph. [E]. 16/5. [Third] 'Study for Viola'. Incomplete. Autograph. [B].
Violets. 'Every morn I send the violets'. Soprano,
151/1-2. Two Gwilym Thomas copies. [D]. 151/3. ?Gwilym Thomas copy. [D]. 151/4. Twelve bars in another key. ? Gwilym Thomas copy. [D]. 151/5. Solo vocal part only. 10 bars. ?Autograph. [D]. 151/6. Two folios containing solo vocal part only, and rough drafts of other works. [D].
Voluntary (for harmonium or American organ). Autograph. [B],
28/1. Score. Autograph. [B]. 28/2. Score. With different introduction. Autograph. [B]. 28/3. Arrangements for violin and cello. (Solo parts). Autograph. [B]. 28/4. Fragment. (4 bars). Autograph. [B]. 28/5. Fragment. (7 bars). Autograph. [B].