Part of The Tŷ Cerdd Archive,
Full score and pencil score (+ five copies) and parts. Written by R. S. Hughes and orchestrated by Idris Lewis. Parts: Vn i(13)/Vn ii(8)/Va(4)/Vc(5)/Cb(5)/fl(3)/ob(3)/cl i-ii(3+2)/bsn(3)/hns i-ii(3) and alternate/tpt i-ii(4)/trbn(2)/hp(2). Photocopy of published song copy score. (B.B.C. Ref.33).
Part of The Tŷ Cerdd Archive,
Manuscript scores of instrument parts (string orchestra): Vn solo/Vn i(3)-Vn ii(3)/Va(3)/Vc(2)/Cb(2). Revised Vn i-ii. Photocopies of the same.
Part of The Tŷ Cerdd Archive,
Pencil vocal score with piano. Incomplete work for S.A.T.B. and piano. Opening section of an unfinished operatic piece. (no B.B.C. Ref.).
Eistedd ar ben Llidiard (So Early in the Morning),
Part of The Tŷ Cerdd Archive,
Full score for piano quartet by Idris Lewis. Orchestration: Vn/sax/tpt/piano/voice. (no B.B.C. Ref.).
Part of The Tŷ Cerdd Archive,
Ink score of a song for soprano and piano.
words by Cynan.
Part of The Tŷ Cerdd Archive,
Loose manuscripts enclosed in a manuscript book marked 'Short pieces for pianoforte' comprising 'Romance for SAF', 'Waltz in C major', 'St Michael', 'Reverie on an original theme. Piano solo', and 'The iceberg' .
Part of The Tŷ Cerdd Archive,
Full score for piano quartet by Idris Lewis. Orchestration: Vn/sax/tpt/piano/voice. (no B.B.C. Ref.).
Dylan : three poems by Dylan Thomas set to music for chorus, a cappella
Part of The Tŷ Cerdd Archive,
Symphax copy of vocal score, ink and pencil sketches for orchestral version, together with correspondence relating to performances commissioned by the BBC in 1976.
words by Dylan Thomas.
Dyffryn Clwyd (The Missing Boat),
Part of The Tŷ Cerdd Archive,
Full score and parts arranged by Idris Lewis. Parts: Vn i(4)/Vn ii(2)/Va(2)/Vc(2)/Cb/fl/cl/hns/tpt. (B.B.C. Ref.68).
Part of The Tŷ Cerdd Archive,
Parts only, by Idris Lewis. Parts: Vn i(2)/Vn ii/Va/Vc/Cb/fl/ob/cl i-ii/bsn/hns i-ii/tpt i-ii. The score can be found in Tŷ Cerdd Archive, C9/66, with 'Dies Irae'. (B.B.C. Ref.120).
Dydd Llun, Dydd Mawrth, Dydd Mercher,
Part of The Tŷ Cerdd Archive,
Full score and parts for piano quintet, arranged by Idris Lewis. Parts: Vn i-ii/Va/Vc/piano. (no B.B.C. Ref.).
Dychwelyd = : Returning : meditation for mixed choir,
Part of The Tŷ Cerdd Archive,
Reproduction of a manuscript score, dated October 1976.
words by T. H. Parry-Williams, English translation by the composer.
Dros y Dwr i Draeth Llansteffan,
Part of The Tŷ Cerdd Archive,
Full score and parts arranged by Idris Lewis. Parts: Vn i(4)/Vn ii(3)/Va(2)/Vc(2)/Cb/fl/cl i-ii/hp. (B.B.C. Ref.51A).
Part of The Tŷ Cerdd Archive,
Full score and parts, orchestration by Idris Lewis. Parts: Vn i(2)/Vn ii(2)/Va/Vc/Cb/fl/ob/cl i-ii/bsn/hns/tpt/trbn. (B.B.C. Ref.124).
Dithyramb : : for baritone solo, mixed choir and piano,
Part of The Tŷ Cerdd Archive,
Ink score of pagan chorus.
Wagner, Richard, 1813-1883.
Part of The Tŷ Cerdd Archive,
Pencil score (with two copies) and parts. Composed by John Henry and orchestration by Idris Lewis. Two copies of printed vocal score with piano, published by Hughes & Son. Parts: Vn i(4)/Vn ii(3)/Va/Vc/Cb/fl i-ii/ob/cl i-ii/bsn/hn i-ii/tpt/hp. (B.B.C. Ref.23).
Part of The Tŷ Cerdd Archive,
Full score with parts for 'Dies Irae', arranged by Idris Lewis. Score only for 'Dyddiau Dyn'. Parts: Vn i(4)/Vn ii(3)/Va(3)/Vc/Cb/fl/ob/cl/bsn/hns/tpt/tbn i-iii(2). Copy typescript of a printed score featuring 'Aberystwyth', 'Crugybar' and 'Dies Irae'. (B.B.C. Ref.66).
Diarmuid and Grainne : : orchestral suite
Part of The Tŷ Cerdd Archive,
Bound ink full score.
Dewiniaeth : : Welsh mythical mime-ballet,
Part of The Tŷ Cerdd Archive,
Bound ink full score, dated 'Barmouth, 1935', piano arrangement, together with ink instrumental parts (violins (I and II), viola, cello, bass, flute, oboe, clarinet in B flat, bassoon, French horn, trumpet in B flat, tenor trombone, timpani and percussion).