I Fiamminghi IV: O admirabile commercium. Brumel, Regis, Mouton, Josquin. Cappella Pratensis - Rebecca Stewart, Ricercar 207572
M264, M265 and M268 have further concordances in F-PN Cons. Rés. F. 41 (for the foliation, see the records of the individual motets). Because of its particular nature, this source (in which the motets are inserted as handwritten additions between printed masses by Carpentras) is not listed among the Other sources of the present cycle (see http://www.diamm.ac.uk/sources/2375/#/).
See information on this cycle as part of The Josquin Research Project.
The incipit of the antiphon Rubum quem viderat Moyses (Cantus ID 004669) quoted in the opening of all voices, most precisely in the C:
1--d-e--f--g--g--g--g--fedef--f--f---4
"Rubum quem viderat Moyses" (http://cantusindex.org/id/004669)
The next part of the antiphon Rubum quem viderat Moyses (Cantus ID 004669) quoted in C and T successively in the next phrase:
1--e--f--g--g--g--g--g--f--gh--h--gh--e--4
"incombustum conservatam agnovimus" (ibid.)
1--dh--h--hg--hj--hg--g--f--g--hg--e--e---4
"tuam laudabilem virginitatem" (ibid.)
The next part of the antiphon Rubum quem viderat Moyses (Cantus ID 004669) quoted in T and C successively in the next phrase:
1--h--gf--g--fe--d--4
"dei genetrix" (ibid.)
The next part of the antiphon Rubum quem viderat Moyses (Cantus ID 004669) loosely quoted in T and C in the last phrase:
1--e--f--h--g--f--g--e--4
"intercede pro nobis" (ibid.)
See also The Josquin Research Project.