Discussion:Ave verum corpus (William Byrd)

De Wicri Musique

Bibliographie brute

extrait de l'article de John Harley via HUGH BENHAM

Harley’s remarks (pp. 84–5) about commixture in Ave verum corpus, a work ‘in G-Aeolian’— or G(♭♭) — concern the phrases ‘cuius latus per-foratum’ and ‘unde fluxit sanguine’. It would have been worth observing that the (descending)‘diatessaron of F-Ionian’ in the medius at ‘perfo-ratum’ is immediately followed, even contra-dicted, by the pattern F–E♭–D–C in the samevoice with longer notes as the tonality changes again, this time into ‘B♭ -Ionian’. It is true that the bassus at ‘perforatum’ ends with the (ascend-ing) ‘F diatessaron, exceeding it by one note’, but this ‘one note’ is in fact a relatively long B ♭, preceding the C–D–E ♭–F ascent. Heard in isolation, B♭C–D–E ♭–F seems more like a Lydian diapente on B ♭ than an extension of an F diatessaron. But incontext the B♭ –F outline, despite its E , seems also toprepare us for the tonality of the ensuing phrase where the bassus is entirely taken up with outlin-ing the interval B♭ –F.