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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.

Latest News

New Facsimile

Anne Boleyn facsimile and introductory study is now available from DIAMM Publications

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 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.

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.

More publications

DIAMM At a glance

  • Images: 55,398 (2,420 new)
  • Manuscript records: 3,909 (19 recently updated)
  • Person records: 3,903
  • Place records: 695
  • Organization records: 853
  • Archive records: 629

Recently Added Sources

F-Pn lat. 13762
Chant MS with added polyphony, 12th century
IRL-Dm S.T.C. 16255 (Psalterium cum Antiphonis...unacum Hymnis)
Printed chant book with added polyphonic fragment, published 1503, fragment added
F-T Ms 980
15th century
I-Rv T(omo) XXVI
Lectionary with music,
I-Rv B.8
Missal with one Alleliuia, 12th century

Recently Updated Sources

GB-Lbl Royal Appendix 49
partbook, c. 1565-80
I-Fn MS II.I.232
manuscript of polyphony, c. 1516-21
E-VIC Fragment V. 60
fragment, 14th century
E-G frag. 33/I
fragment, 14th cent.