Dawns y Gwanwyn (Gavotte for pf. and strings),
6/1. Score, strings only. Autograph. [B]. 6/2. Score, strings only. Gwilym Thomas copy. [B]. 6/3. Pf. part only. Autograph. [B]. 6/4. Pf. part only. Gwilym Thomas copy. [B]. 6/5. Individual string parts. [B]. 6/6. Draft score. Incomplete. [D]. 6/7. Printed copy. (Oxford University Press). [D].
Lament (Violin solo with pf. accompaniment),
11/1. Score. Autograph. [B]. 11/2. Score. Incomplete. Autograph. [D]. 11/3. Solo violin part. Autograph. [B].
'Au Revoir?' (for violin and piano). Autograph. [D],
Study for Violin. Autograph. [B],
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].
Cello Solo with pf. accompaniment,
20/1. Full copy. Autograph. [B]. 20/2. Rough drafts of separate pf. and cello parts. [B]. 20/3. Cello part only. Autograph. [B].
Arrangements of Welsh airs for cello and piano,
21/1. Ymadawiad y Brenin, Y Ferch o Scêr. Autograph. [C]. 21/2. Ymadawiad y Brenin, Tros y Garreg, Y Ferch o Scêr. Gwilym Thomas copies. [C]. 21/3. Ymadawiad y Brenin, Tros y Garreg, Y Ferch o Scêr. Gwilym Thomas copies. [C]. 21/4. Solo cello parts for Ymadawiad y Brenin, Tros Y Garreg, Y Ferch o Scêr. Three copies, all Gwilym Thomas [C]. 21/5. MS music book containing Y Mynach Du, Tros y Garreg draft of Rain Song, and words of Carol Nadolig [No. 321]. Autograph. [C]. 21/6. Y Mynach Du, Gwilym Thomas copy. [C]. 21/7. Solo cello part of Y Mynach Du. Gwilym Thomas copy. [C]. 21/8. MS music book containing Dafydd y Garreg Wen, Llwyn Onn, Y Deryn Pur, and rough drafts of other works. Autograph. [C]. 21/9. MS music book containing cello parts only of Dafydd y Garreg Wen, Llwyn Onn, Y Deryn Pur, Men of Harlech, and drafts of other works. Autograph. [C]. 21/10. MS music sheet containing Dafydd y Garreg Wen, Gwilym Thomas copy. [C]. 21/11. MS music sheet containing cello parts only of Dafydd y Garreg Wen, Llwyn Onn, Y Deryn Pur. Gwilym Thomas copies. [C].
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].
Voluntary (for harmonium or American organ). Autograph. [B],
Fragment of solo part for cornet in A. Gwilym Thomas copy. [C],
Work for pf. and a solo instrument. [D],
Rough draft of part of a work scored for full orchestra. [D],
Small MS music book containing first eight bars of 'I am lying' [?a song], and part of a work for four instruments. [D].
Arranged into ballads, monologues and cantatas, 1912-1923 (74-78): songs (with pianoforte accompaniment unless otherwise stated), 1890-1911 (79-100); songs (group of soprano solos, several dedicated to Sappho, c.1911), [1881x1928] (101-106); songs, 1911-1928 (107-214); part-songs, 1899-1918 (215-227); anthems etc., 1904-1923 (228-234); hymns, 1901-1928 (235-314); and carols, [?c.1900]-1927 (315-321). No. 89 is not used.
74/1. For four voices with pf. accompaniment. Gwilym Thomas copy. [D]. 74/2. Notebook containing vocal parts only. Sol-fa. [D]. 74/3. Vocal parts only, Sol-fa, [D]. 74/4. Solo part for flutes. Opening bars only. Gwilym Thomas copy. [D]. 74/5. Second bass part only, Sol-fa. [D].
He Fell Among Thieves. (Sir Henry Newbolt). Ballad,
75/1. For four voices with pf. accompaniment. Evan Thomas copy. [C]. 75/2. Another copy, scored for full orchestra. ? Evan Thomas copy. [C]. 75/3. Printed copy. Vocal parts only, SATB Sol-fa. [C]. 75/4. Part for trumpets in A only. Gwilym Thomas copy. [C]. 75/5. Part for trumpets in A only. Gwilym Thomas copy. [C]. 75/6. Organ part, bars 168-181. Gwilym Thomas copy. [C]. 75/7. MS music book containing drafts of other works and part of He Fell Among Thieves. Autograph. [E].
'The spirits of your fathers'. Battle song. Incomplete. Autograph. [D],