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DIAMM (the Digital Image Archive of Medieval Music) is a leading resource for the study of medieval manuscripts. We present images and metadata for thousands of manuscripts on this website. We also provide a home for scholarly resources and editions, undertake digital restoration of damaged manuscripts and documents, publish high-quality facsimiles, and offer our expertise as consultants.

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DIAMM Publications

For a limited time, there are copies of ALL DIAMM publications available at a significant discount as they are very slightly damaged (usually just bumped) from our recent warehouse move. These copies are shown on our shop page as ‘seconds’ separately from the main product listing.

The Eton Choirbook

The Award-winning Full-colour facsimile edition of Eton College Library MS. 178 produced by Diamm Publications, with an extensive illustrated introductory study by Magnus Williamson.

The Dow Partbooks

Robert Dow’s partbooks, copied in Oxford around 1580, rank among the most beautiful of all Tudor music manuscripts, and are also an important and authoritative source for the works they contain.

Byrd Masses for 3, 4, 5 Voices

Among the most recognisable works in the sacred Tudor repertory, William Byrd's Masses for 3, 4, and 5 voices are presented in this facsimile edition produced from the original printed editions bound in Christ Church Mus 489-493.

More publications

Recently Added Sources

F-T Ms 980
15th century
I-Rv T(omo) XXVI
Lectionary with music,
I-Rv B.8
Missal with one Alleliuia, 12th century
F-RSm MS 400
Text codex with added music (fragment), unknown
D-F Fragm. lat. X 29
fragments in a text codex, first half of 14th century

Recently Updated Sources

D-Mbs Clm. 15611
non-music MS with interpolated music, 1st half of 15th century
GB-Lbl Add. MS 4900
Voice and lute, 1580
I-MOe MS {alpha}.M.5.24 (Modena A; ModA)
complete choirbook, Early 15th century
I-Rvat MS Capp. Sist. 57
manuscript of polyphony, c. 1535-77