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D-flat major was used as the key for the slow movements of Joseph Haydn's Piano Sonata Hob XVI:46 in A-flat major, and Beethoven's Appassionata Sonata. Chopin's Minute Waltz from Op. 64 is in D-flat major. A part of the trio of Scott Joplin's "Maple Leaf Rag" is written in D-flat major.
Especially in its most common occurrence (as a triad in first inversion), the chord is known as the Neapolitan sixth: . The chord is called "Neapolitan" because it is associated with the Neapolitan School, which included Alessandro Scarlatti, Giovanni Battista Pergolesi, Giovanni Paisiello, Domenico Cimarosa, and other important 18th-century composers of Italian opera.
Similarly, the diminished triad can be named minor triad flat five, or minor triad diminished fifth (m ♭ 5, m o 5, min dim5). Again, the terminology and notation used for triads affects the terminology and notation used for larger chords, formed by four or more notes.
D-flat minor is usually notated as the enharmonic key of C-sharp minor, as in the second and third measures of Amy Beach's Canticle of the Sun. [1] However, unusually, two of Verdi's most well-known operas, La traviata and Rigoletto, both end in D-flat minor (although written with the five-flat key signature of the parallel major).
For instance, in example one above (C 7 ♯ 9) the triad of E ♭ major is a (compound) minor 3rd away from C (root of the bottom chord). Thus, this upper structure can be called upper structure flat three, or US ♭ III for short. Other possible upper structures are: USII – e.g. D major over C 7, resulting in C 13 ♯ 11
Diminished major seventh chords are very dissonant, containing the dissonant intervals of the tritone and the major seventh.They are frequently encountered, especially in jazz, as a diminished seventh chord with an appoggiatura [citation needed], especially when the melody has the leading note of the given chord: the ability to resolve this dissonance smoothly to a diatonic triad with the same ...
Alban Berg’s Violin Concerto (1935) ends with a "tonic triad of B flat, with added sixth [that] follows a harmonic progression found frequently in 1930s dance-band arrangements." [ 23 ] However, Richard Taruskin points out that Berg's "chord thus created, B flat, D, F, G had an important poetic resonance", as it echoes the ending of Mahler's ...
Unlike the dominant triad or dominant seventh, the leading-tone triad functions as a prolongational chord rather than a structural chord since the strong root motion by fifth is absent. [6] On the other hand, in natural minor scales, the diminished triad occurs on the second scale degree; in the key of C minor, this is the D diminished triad (D ...