Digital Image Archive of Medieval Music (Clonato)

This website is a portal to worldwide collections of medieval polyphonic music manuscripts (the resource does not include plainchant).
The music and the manuscripts date from approx 800 to 1550, and the original documents are kept in libraries and archives around the globe. This website includes detailed information for all the known sources of European polyphonic music (which is almost entirely vocal) and high-quality colour images of some manuscripts.

from the website's description

On the website you can:

* view the list of countries, libraries and manuscript shelf marks through 'Browse Archive'

* perform a search for a manuscript or library that you already know about

* consult entries from the published catalogues of medieval music and get library contact details by 'entering' a particular library from the 'Browse Archive' menu

* register as a user online instantly (for free) and view the full-size images through our image-viewer

* use our annotation and text transcription tools to create your own collection of images, to which you can return next time you log in.

Capture of the images preserved by DIAMM was funded by the Arts and Humanities Research Board; the development of this online research resource is supported by The Andrew W Mellon Foundation