E-Sco 7-1-28 (lxxxvii'-lxxxviii)
A los maitines era
A los maytines era
No. of voices:
Remarks about MS:
A fifth voice was added in the lower margin of fols. lxxxvii'-lxxxviii, most likely as an alternative voice to the Cantus. Here the incipit of the Cantus presents both options.