Hypolydian mode
The Hypolydian mode, literally meaning "below Lydian", is the common name for the sixth of the eight
plagal counterpart of the authentic fifth mode
.
In medieval theory the Hypolydian mode was described either as (1) the
psalm tone—was regarded as having an important melodic function in this mode. The sequence of intervals was therefore divided by the final into a lower tetrachord of tone-tone-semitone, and an upper pentachord of tone-tone-tone-semitone. However, from as early as the time of Hucbald the Hypolydian mode—even more than the corresponding authentic mode, the Lydian—was characterized by the predominance of B♭ instead of B♮ as the fourth degree above the final.[1]
The melodic centering on F and A, as well as the use of B♭ instead of B♮, is illustrated in the accompanying example from the Requiem Mass introit, "Requiem aeternam".
Finer distinctions among the scale degree are sometimes made, with the D below the final called the "mediant", the lowest note, C, the "participant" (a tone functioning as an auxiliary to the mediant), the G, B, and B♭ the "conceded modulations" (subsidiary degrees), and the lowest C, the final, F, and (rarely) the D the "absolute initials".[3]
References
- ^ Harold S. Powers.
- Harold S. Powers.
- ^ Rockstro, William Smyth. 1880. "Modes, the Ecclesiastical". A Dictionary of Music and Musicians (A.D. 1450–1880), by Eminent Writers, English and Foreign, vol. 2, edited by George Grove, 340–43. London: Macmillan and Co. p. 342.
- ISBN 9780195170672.
Further reading
- Gissel, Siegfried. 1997. "Glareans Tonarten Lydius und Hypolydius und ihre Berücksichtigung durch die Theoretiker/Komponisten bis etwa 1650". Musica Disciplina 51:73–102.
- Marzi, Giovanni. 1973. "Il papiro musicale dell' Oreste di Euripide (Pap. Vindob. G 2315)". In Scritti in onore di Luigi Ronga, 315–29. Milan and Naples: Ricciardi.
- Ruhnke, Martin. 1992a. "Glareans lydischer und hypolydischer Modus bei Dulichius". In Festschrift Hubert Unverricht zum 65. Geburtstag, edited by Karlheinz Schlager, 221–29. Eichstätter Abhandlungen zur Musikwissenschaft 9. Tutzing: Hans Schneider. ISBN 3-7952-0719-3.
- Ruhnke, Martin. 1992b. "Vorbereitung der Edition eines Jahrgangs Evangelien-Motetten von Philipp Dulichius". In Musik des Ostens: Ostmittel-, Ost- und Südosteuropa. XII, edited by Hubert Unverricht, 95–113. Musik des Ostens: Ostmittel-, Ost- und Südosteuropa 12. Kassel: Bärenreiter. ISBN 3-7618-1066-0.