Attribution reproduced in CMM 106.3, Plate 5; see also the historical register.
WARD 1986, 507-508 proposes the reconstruction of a “virtual” seven-motet cycle combining motets from the present cycle and C37a.
See also information on this cycle as part of the Gaspar van Weerbeke Project.
The incipit of the responsory Factus est repente (Cantus ID 006717) quoted in the incipit of the T:
1--g---gl--l--l--l--g--l--l--k--4
"Factus est repente de caelo" (http://cantusindex.org/id/006717)
See also the Gaspar van Weerbeke Project.