Advanced Imaging EquipmentThe Eton ChoirbookVolunteers and Community EngagementThe Ferrell-Vogüé Machaut ManuscriptThe Dow PartbooksCaius Choirbook

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: 61,220 (1 new)
  • Manuscript records: 4,006 (79 recently updated)
  • Person records: 3,883
  • Place records: 711
  • Organization records: 701
  • Archive records: 645

Recently Added Sources

F-Pnm Latin 8421
non-music MS with fragments, 14th century
GB-Odiamm Virtual Reconstruction of the Egerton/Wolffheim chansonnier
Reconstruction of dispersed fragments in more than one archive, c. 1500
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

Recently Updated Sources

CH-BEb Cod. A 421
flyleaves, mid-14th century
D-W Cod. Guelf. 628 Helmst. (Magnus Liber Organi; W1)
Manuscript of polyphony, 13th century
GB-Eu MS La III. 483 (c) (St. Andrews Psalter or Wode Partbooks)
partbook, c. 1562-92, with early 17th-century additions
GB-Lbl Add. MS 33933 (St. Andrews Psalter or Wode Partbooks)
partbook, 1562-92 with 17th century additions
IRL-Dtc MS 412 (St. Andrews Psalter or Wode Partbooks)
partbook, 1562-92, with early 17th century additions