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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

Our Christmas sale is now over, but you can still enquire for bulk discounts or special prices for libraries. Email us or. Jump straight to the online store here.

The Anne Boleyn Music Book

Sold out from DIAMM, but copies may still be available from the library of the Royal College of Music.

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.

More publications

DIAMM At a glance

  • Images: 67,563
  • Manuscript records: 4,616 (16 recently updated)
  • Person records: 4,152
  • Place records: 738
  • Organization records: 709
  • Archive records: 683

Recently Added Sources

F-B Ms. 716
non-music manuscript, late 13th century
A-KN Ct 0331
fragment (offset), late 14th - early 15th century
I-BRq MS. E. VIII.28
Liturgical ms with added polyphony, Fourteenth or fifteenth century
IRL-Dm Z1.2.16
Printed book with added polyphony, after 1503
D-B Ham. 554
Psalter with hymnary, with added polyphony, 14th to 15th century

Recently Updated Sources

A-KN Fragment from ms CCl. 499
fragment, Late 14th - early 15th century
GB-NTu ROB 405 (Petre Gradual)
Sarum Gradual with polyphonic additions, 1370 with polyphonic additions c. 1460
I-Bsp MS A.XXXXVI (A46)
manuscript of polyphony, 16th century
GB-Ctc O.2.1
non-music MS with interpolated music, 13th century (middle)
US-I Misc. Bd. Ms. 32
fragments, Ordinal c. 1323-c. 1350; fragments c. 1420-1450