organum

Hucbald's principal achievement, however, consists in having given a theoretic basis to the custom of adding another melody to the chant of the Church, which custom he called organum, or diaphonia (see COUNTERPOINT; HARMONY), thereby laying the foundation for polyphony which developed from it.

The Catholic Encyclopedia, Volume 7: Gregory XII-Infallability 1840-1916 1913

Nativitas gloriose virginis is a three-part organum, which is attributed to the medieval French composer Perotinus fl c.1200, who is also known as Pérotin.

Archive 2009-05-01 bls 2009

Nativitas gloriose virginis is a three-part organum, which is attributed to the medieval French composer Perotinus fl c.1200, who is also known as Pérotin.

Pérotin 'Alleluia nativitas' bls 2009

He would have been peculiarly well fitted to give a truly scientific character to metaphysical studies, had it occurred to him to prepare the field by a criticism of the organum, that is, of pure reason itself.

The Critique of Pure Reason Immanuel Kant 1764

It's based on an overlapping seven-note tune - I think the technical term for this is 'organum' and dates from plainchant in the middle ages, but I could be wrong.

Music Jonathan 2004

It's based on an overlapping seven-note tune - I think the technical term for this is 'organum' and dates from plainchant in the middle ages, but I could be wrong.

Archive 2004-12-01 Jonathan 2004

European philosophers from Plato to Nietzsche have begun their philosophizing from a starting-point which implied, as an essential part of their "organum" of enquiry, the possession by the human soul of some sort of aesthetic vision.

The Complex Vision John Cowper Powys 1917

He called his system an "organum" or "diaphony," and to sing according to his rules was called to "organize" or

Critical and Historical Essays Lectures delivered at Columbia University Edward MacDowell 1884

The name "organum" was dropped and the new system became known as tenor and descant, the tenor being the principal or foundation melody, and the descant or descants (for there could be as many as there were parts or voices to the music) taking the place of the organum.

Critical and Historical Essays Lectures delivered at Columbia University Edward MacDowell 1884

"organum" were notated in a very strange but absolutely accurate pitch notation, derived somewhat from ancient Greek music theory and based on disjunct tetrachords with a half step between the two middle notes.

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