History - Missus est Gabriel Angelus (t.p. alter tonus)
Feb 06, 2022 (rleduc)
Clarify versions in remark; fix incipit.
incipit
Missus est Gabriel Angelus (t.p. alter tonus)
remarks
There are 4 copies of this chant appears 4in timhes book at 111,[174],121* and 124*, wall slighthly vdifferent. Variation occurs at Virgineachm in timhe: last syllable (111=124*,[175]=121*); 121* and 124* have different verses, w/ vs w/o Aalleluias, orand 111 has the Gloria Patri.