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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

Robert Judd (1956-24 August 2019)

We join the musicological community in sending our sympathy to the family of Robert Judd, musicologist and Executive Director of The American Musicological Association.

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 Anne Boleyn Music Book

Our latest facsimile publication, but already out of print. Copies are still available from the library of the Royal College of Music though.

The Ferrell-Vogüé Machaut MS

The most hidden of all the Machaut manuscripts is now the most available. Winner of the American Musical Society 2015 Claude V. Palisca Prize for the most outstanding scholarly edition or translation in the field of musicology published in 2014.

Henry VIII Manuscript

Compositions by Henry VIII and others in a manuscript that may reflect the repertory of the Tudor king’s own music-making sessions.

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: 56,582 (16 new)
  • Manuscript records: 3,955 (188 recently updated)
  • Person records: 3,816
  • Place records: 702
  • Organization records: 694
  • Archive records: 640

Recently Added Sources

GB-BRu Arts and Social Sciences Library, DM2196
polyphonic work in a chant source, 15th/16th century
F-LM TH 8° 10544
fragments of conductus, 13th century
F-Pa Ms 666
fragment, 14th century
D-Mu Cim. 13
Music theory with examples, 1200-1250
P-Ln ALC-34
fragments from binding, c.1375-c.1425

Recently Updated Sources

GB-Cu Kk.i.6
non-music MS with interpolated music, Early 15th century
GCA-Gc 4
manuscript of polyphony, c. 1600-2
MEX-Pc MS II
manuscript of polyphony, First half of 17th century
MEX-Pc MS XIII
Choirbook, early 17th century
MEX-Pc MS I
manuscript of polyphony, second half of 17th century