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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

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 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: 61,210 (336 new)
  • Manuscript records: 4,004 (81 recently updated)
  • Person records: 3,879
  • Place records: 710
  • Organization records: 701
  • Archive records: 645

Recently Added Sources

GB-Odiamm Virtual Reconstruction of the Worcester Fragments ('Worcester 3', the 'conductus book')
Reconstruction of dispersed fragments from one archive, 14th century: c.1300
GB-Odiamm Virtual Reconstruction of the Worcester Fragments ('Worcester 2' , the 'large-format volume')
Reconstruction of dispersed fragments from more than one archive, 14th century: c.1300
E-G fragment 71
chant fragment, 12th century
E-G fragment 39
chant fragment, 12th century
E-G fragment 38/I
chant fragment, 12th century?

Recently Updated Sources

D-HRD 9820
manuscript of polyphony in score format, c. 1545-50?
D-HRD 9821
manuscript of polyphony, c. 1545-50?
GB-Lbl Add. MS 29289
partbook, c. 1625-30
GB-Cu (Coventry and Lichfield Pontifical)
chant manuscript, 13th century, with later supplement
GB-BGul Bangor Pontifical (Bangor Pontifical)
chant manuscript, Episcopate of Anian II, Bishop of Bangor 1309-28