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The fundamental chords of tonal music—major and minor triads and also seventh chords—all contain fifth intervals. Perfect fifths are contained in major and minor triads and in particular seventh chords (especially major-minor sevenths with dominant function, major sevenths, and minor sevenths).
The half-diminished seventh chord is frequently used in passages that convey heightened emotion. For example, the "mournful affect" [5] of the sombre opening Chorus of J. S. Bach's St Matthew Passion (1727) features the chord on the seventh beat of its first bar and on the first beat of its third bar:
This chord might be notated Cm 6, Cm M6, Cmin/maj 6, Cmin (maj6), etc. Note that Cm 6 has the same notes as F 9 with the root omitted, i.e. the notes F (omitted), A, E ♭, C, and G. These notes form a tetrad with several enharmonic equivalents: C–E ♭ –G–A might be written as Cm 6, F 9, F 9 (no root), Am 7 ♭ 5, B 7 ♭ 9, A ♭ Maj7 ...
G minor has been considered the key through which Wolfgang Amadeus Mozart best expressed sadness and tragedy, [1] and many of his minor key works are in G minor, such as Piano Quartet No. 1 and String Quintet No. 4. Though Mozart touched on various minor keys in his symphonies, G minor is the only minor key he used as a main key for his ...
Symphony No. 5 (Shostakovich) in D minor (Op. 47) by Dmitri Shostakovich, 1937; Symphony No. 5 (Sibelius) in E-flat major (Op. 82) by Jean Sibelius, 1915–19; Symphony No. 5 (Simpson) by Robert Simpson, 1972; Symphony No. 5 (Tchaikovsky) in E minor (Op. 64) by Pyotr Ilyich Tchaikovsky, 1888; Symphony No. 5 (Ustvolskaya) (Amen) by Galina ...
In music theory, the dominant seventh flat five chord is a seventh chord composed of a root note, together with a major third, a diminished fifth, and a minor seventh above the root (1, ♮ 3, ♭ 5 and ♭ 7). For example, the dominant seventh flat five chord built on G, commonly written as G 7 ♭ 5, is composed of the pitches G–B–D ♭ –F:
Its relative minor is E-flat minor (or enharmonically D-sharp minor). Its parallel minor, G-flat minor, is usually replaced by F-sharp minor, since G-flat minor's two double-flats make it generally impractical to use. Its direct enharmonic equivalent, F-sharp major, contains six sharps. The G-flat major scale is:
It is qualified as minor because it is the smaller of the two: the minor sixth spans eight semitones, the major sixth nine. For example, the interval from A to F is a minor sixth, as the note F lies eight semitones above A, and there are six staff positions from A to F. Diminished and augmented sixths span the same number of staff positions ...