The most significant discoveries were found in the following manuscripts. A music book for soloists – Mantua, MS 295: MusRes led to the unexpected identification of four leaves, reused in the 12th c., coming from a lost original cantatorium, a very rare type of music book in 11th-c. Italy, shedding new light on the production of specialised music books (the cantatorium contained only the chants for the soloist, who was usually the best singer in an ecclesiastical institution) which are normally considered among the most ancient types of musical compilations. Only four leaves survive that were reused to make an eight-leaf fascicle by placing them horizontally and then folding in half. The original ink was faded, which may be the reason for the destruction of the music book and its 'recycling' in the later manuscript. The MusRes images allowed us to date the original manuscript more precisely to the second half of the 11th c., and identify the type of musical notation as West-Frankish.
Chants for the Liturgy of the Hours – Assisi, MS 432bis: MusRes trials allowed us to observe for the first time in great detail the content, organisation and presentation of chants hitherto hidden in the palimpsest folios. Some of the earliest traces of notation and transmission of liturgical chant in early-medieval Italy emerged. The folios reused in the compilation of MS 432bis came from an early 10th-c. antiphoner, and contained chants for the Divine Office, written in early West-Frankish notation. The antiquity of the source, and the amount of material surviving, ca. 100 melodies, were so far not known. The musical and textual content will now become part of the most significant corpus of sources for the study of early chant books in medieval Europe.
Transalpine connections – Vercelli, MS CCVIII: the identification of the original music manuscript and its dating to the early 10th c. thanks to the MusRes multispectral imaging, shed light on a previously obscure phase in the history of early music writing, namely that of the diffusion of the so-called 'Breton' type of notation into northern Italy. The palimpsest folios, found as part of a few fascicles at the end of MS CCVIII, were originally part of a gradual, the book containing the chants of the Mass. This previously unidentified source will contribute to our understanding of the dynamics of movement and exchange of notational expertise among singers from distant regions both sides of the Alps.