G-sharp major

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G-sharp major
G-sharp-major e-sharp-minor.png
Relative keyE-sharp minor
Parallel keyG-sharp minor
Dominant keyD-sharp major
enharmonic: E-flat major
SubdominantC-sharp major
EnharmonicA-flat major
Component pitches
G, A, B, C, D, E, Fdouble sharp

G-sharp major is a theoretical key based on the musical note G, consisting of the pitches G, A, B, C, D, E and Fdouble sharp. Its key signature has six sharps and one double sharp.[1]

Its relative minor is E-sharp minor (usually replaced by F minor), its parallel minor is G-sharp minor, and its enharmonic equivalent is A-flat major.

The G-sharp major scale is:

\override Score.TimeSignature #'stencil = ##f
\relative c'' {
  \clef treble \key gis \major \time 7/4 gis4 ais bis cis dis eis fisis gis fisis eis dis cis bis ais gis2
} }

Although G-sharp major is usually notated as the enharmonic key of A-flat major, because A-flat major has only four flats as opposed to G-sharp major's eight sharps (including the Fdouble sharp), it does appear as a secondary key area in several works in sharp keys, most notably in the Prelude and Fugue in C-sharp major from Johann Sebastian Bach's The Well-Tempered Clavier, Book 1. The G-sharp minor prelude (and, in some editions, the fugue) from the same set ends with a Picardy third, on a G-sharp major chord. G-sharp major is tonicised briefly in several of Frédéric Chopin's nocturnes in C-sharp minor. A section in the second movement of Chopin's Piano Concerto No. 1 is in G-sharp major, although the key signature has four sharps. The end of the exposition of the second movement Charles-Valentin Alkan's Grande sonate 'Les quatre âges', subtitled Quasi-Faust, is in G-sharp major, albeit written with a six-sharp key signature (the movement opens in D-sharp minor and ends in F-sharp major).

The final pages of A World Requiem by John Foulds are written in G-sharp major with its correct key signature shown in the vocal score including the Fdouble sharp.[2]


  1. ^ Thomas Busby (1840). "G-sharp major". A Dictionary of Three Thousand Musical Terms. revised by J. A. Hamilton. London: D'Almaine and Co. p. 55.
  2. ^ http://www.musicsalesclassical.com/composer/work/14652