The Hypoionian mode, literally meaning "below Ionian", is the name assigned by

Henricus Glareanus Heinrich Glarean also styled Henricus Glareanus (born as Heinrich Loriti on 28 February or 3 June 1488 – 28 March 1563) was a Swiss music theorist, poet, humanist, philosopher and cartographer. He was born in Mollis (in the canton of Glarus, hen ...

in his ''Dodecachordon'' (1547) to the

plagal mode A Gregorian mode (or church mode) is one of the eight systems of pitch organization used in Gregorian chant. History The name of Pope Gregory I was attached to the variety of chant that was to become the dominant variety in medieval western and ...

on C, which uses the

diatonic Diatonic and chromatic are terms in music theory that are used to characterize scales. The terms are also applied to musical instruments, intervals, chords, notes, musical styles, and kinds of harmony. They are very often used as a pair ...

octave species In the musical system of ancient Greece, an octave species (εἶδος τοῦ διὰ πασῶν, or σχῆμα τοῦ διὰ πασῶν) is a specific sequence of interval (music), intervals within an octave. In ''Elementa harmonica'', Ar ...

from G to the G an octave higher, divided at its final, C. This is roughly the same as playing all the white notes of a piano from G to G: G A B C , (C) D E F G. Glarean regarded compositions with F as the final and a one-flat signature as transpositions of the Ionian or Hypoionian mode (depending on the

ambitus In ancient Roman law, ''ambitus'' was a crime of political corruption, mainly a candidate's attempt to influence the outcome (or direction) of an election through bribery or other forms of soft power. The Latin word ''ambitus'' is the origin of ...

). Most of his contemporaries, however, appear to have continued considering such compositions as being in the fifth and sixth modes ( Lydian and Hypolydian), which had been regarded since the beginnings of medieval modal theory as preferring B over B for the fourth degree above the final, F.

References

Cited sources

* {{Modes Modes (music)