The Locrian mode is the seventh mode of the major scale. It is either a

musical mode In music theory, the term mode or ''modus'' is used in a number of distinct senses, depending on context. Its most common use may be described as a type of musical scale coupled with a set of characteristic melodic and harmonic behaviors. It ...

or simply a diatonic scale. On the piano, it is the scale that starts with B and only uses the white keys from there. Its ascending form consists of the key note, then: half step, whole step, whole step, half step, whole step, whole step, whole step. ::

History

''Locrian'' is the word used to describe the inhabitants of the ancient Greek regions of Locris. Although the term occurs in several classical authors on music theory, including

Cleonides Cleonides ( el, Κλεονείδης) is the author of a Greek treatise on music theory titled Εἰσαγωγὴ ἁρμονική ''Eisagōgē harmonikē'' (Introduction to Harmonics). The date of the treatise, based on internal evidence, can be e ...

(as an octave species) and Athenaeus (as an obsolete ''harmonia''), there is no warrant for the modern usage of Locrian as equivalent to Glarean's Hyperaeolian mode, in either classical, Renaissance, or later phases of modal theory through the 18th century, or modern scholarship on ancient Greek musical theory and practice. The name first came to be applied to modal chant theory after the 18th century, when it was used to describe the mode newly-numbered as mode 11, with final on B, ambitus from that note to the octave above, and with semitones therefore between the first and second, and fourth and fifth degrees. Its reciting tone (or tenor) is G, its mediant D, and it has two participants: E and F. The final, as its name implies, is the tone on which the chant eventually settles, and corresponds to the tonic in tonal music. The reciting tone is the tone around which the melody principally centres, the mediant is named from its position between the final and reciting tone, and the participant is an auxiliary note, generally adjacent to the mediant in authentic modes and, in the plagal forms, coincident with the reciting tone of the corresponding authentic mode.

Modern Locrian

In modern practice, the Locrian may be considered to be a

minor scale In music theory, the minor scale is three scale patterns – the natural minor scale (or Aeolian mode), the harmonic minor scale, and the melodic minor scale (ascending or descending) – rather than just two as with the major scale, which ...

with the second and fifth scale degrees lowered a

semitone A semitone, also called a half step or a half tone, is the smallest musical interval commonly used in Western tonal music, and it is considered the most dissonant when sounded harmonically. It is defined as the interval between two adjacent no ...

. The Locrian mode may also be considered to be a scale beginning on the seventh scale degree of any Ionian, or major scale. The Locrian mode has the formula: :1, 2, 3, 4, 5, 6, 7 Its tonic chord is a

diminished triad In music theory, a diminished triad (also known as the minor flatted fifth) is a triad consisting of two minor thirds above the root. It is a minor triad with a lowered ( flattened) fifth. When using chord symbols, it may be indicated by the s ...

(B_dim in the Locrian mode of the diatonic scale corresponding to C major). This mode's diminished fifth and the Lydian mode's augmented fourth are the only modes to have a

tritone In music theory, the tritone is defined as a musical interval composed of three adjacent whole tones (six semitones). For instance, the interval from F up to the B above it (in short, F–B) is a tritone as it can be decomposed into the three adj ...

above the tonic.

Overview

The Locrian mode is the only modern diatonic mode in which the tonic triad is a diminished chord, which is considered dissonant. This is because the interval between the root and fifth of the chord is a

diminished fifth Diminished may refer to: *Diminution In Western music and music theory, diminution (from Medieval Latin ''diminutio'', alteration of Latin ''deminutio'', decrease) has four distinct meanings. Diminution may be a form of embellishment in which ...

. For example, the tonic triad of B Locrian is made from the notes B, D, F. The root is B and the fifth is F. The diminished-fifth interval between them is the cause for the chord's dissonance. : The name "Locrian" is borrowed from music theory of

ancient Greece Ancient Greece ( el, Ἑλλάς, Hellás) was a northeastern Mediterranean Sea, Mediterranean civilization, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of Classical Antiquity, classical antiquity ( AD 600), th ...

. However, what is now called the Locrian mode was what the Greeks called the Diatonic Mixolydian tonos. The Greeks used the term "Locrian" as an alternative name for their " Hypodorian", or "Common" tonos, with a scale running from ''mese'' to ''nete hyperbolaion'', which in its diatonic genus corresponds to the modern

Aeolian mode The Aeolian mode is a musical mode or, in modern usage, a diatonic scale also called the natural minor scale. On the white piano keys, it is the scale that starts with A. Its ascending interval form consists of a ''key note, whole step, half ste ...

. In his reform of modal theory in the ''Dodecachordon'' (1547),

Heinrich Glarean Heinrich Glarean also styled Glareanus (born as Heinrich Loriti on 28 February or 3 June 1488 – 28 March 1563) was a Swiss music theorist, poet and humanist. He was born in Mollis (in the canton of Glarus, hence his name) and died in Freiburg im ...

named this division of the octave "Hyperaeolian" and printed some musical examples (a three-part polyphonic example specially commissioned from his friend Sixtus Dietrich, and the Christe from a mass by

Pierre de La Rue Pierre de la Rue ( – 20 November 1518) was a Franco-Flemish composer and singer of the Renaissance. His name also appears as Piersson or variants of Pierchon and his toponymic, when present, as various forms of de Platea, de Robore, or de Vic ...

), though he did not accept Hyperaeolian as one of his twelve modes. The usage of the term "Locrian" as equivalent to Glarean's Hyperaeolian or the ancient Greek (diatonic) Mixolydian, however, has no authority before the 19th century.

Usage

There are brief passages in works by Sergei Rachmaninov ( Prelude in B minor, op. 32, no. 10), Paul Hindemith ('' Ludus Tonalis''), and Jean Sibelius ( Symphony No. 4 in A minor, op. 63) that have been, or may be, regarded as in the Locrian mode. Claude Debussy's '' Jeux'' has three extended passages in the Locrian mode. The theme of the second movement ("Turandot Scherzo") of Hindemith's '' Symphonic Metamorphosis of Themes by Carl Maria von Weber'' (1943) alternates sections in Mixolydian and Locrian modes, ending in Locrian. English folk musician John Kirkpatrick's song "Dust to Dust" was written in the Locrian mode, backed by his

concertina A concertina is a free-reed musical instrument, like the various accordions and the harmonica. It consists of expanding and contracting bellows, with buttons (or keys) usually on both ends, unlike accordion buttons, which are on the front. The ...

. The Locrian mode is not at all traditional in English music, but was used by Kirkpatrick as a musical innovation. Björk's " Army of Me" is a rare example of a pop song whose verse is written in the Locrian mode. Various metal artists such as Metallica and Slayer have used the Locrian scale's diminished second and fifth intervals in chromatic riffs. In terms of true Locrian, rather than simply using Locrian scale degrees within octatonic or chromatic scales, Symphony X used Locrian in parts of the song "Sea of Lies". Slipknot's "Spiders" is written in the Locrian mode instrumentally, although the vocal melody frequently hits the fifth scale degree without flattening it (as in Phrygian), often clashing with the lowered fifth of the Locrian piano and bass parts. The bassline in

The Strokes The Strokes are an American rock band from New York City. Formed in 1998, the band is composed of lead singer and songwriter Julian Casablancas, guitarists Nick Valensi and Albert Hammond Jr., bassist Nikolai Fraiture, and drummer Fabrizio Mor ...

' Juicebox is in Locrian. The song "Gliese 710," from

King Gizzard and the Lizard Wizard King Gizzard & the Lizard Wizard are an Australian rock band formed in 2010 in Melbourne, Victoria. The band's current lineup consists of Stu Mackenzie, Ambrose Kenny-Smith, Cook Craig, Joey Walker, Lucas Harwood and Michael Cavanagh. They are ...

's 2022 album Ice, Death, Planets, Lungs, Mushrooms and Lava, is in Locrian, following the album's theme of basing each song around one of the Greek modes.

References

External links