Marian motet for double choir, edited by Ben Byram-Wigfield
Source: British Library G.509 and H.790
Several variations to the text exist, and this edition conforms to the Analecta version of the poem.
Note values have been halved and the music presented at original pitch. Barlines, small and bracketed accidentals are editorial. Small accidentals are used to show extended or reduced validity of source accidentals, and musica ficta. Bracketed accidentals are cautionary. Some underlay is editorial.