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Piano key frequencies. This is a list of the fundamental frequencies in hertz (cycles per second) of the keys of a modern 88-key standard or 108-key extended piano in twelve-tone equal temperament, with the 49th key, the fifth A (called A 4 ), tuned to 440 Hz (referred to as A440 ). [ 1][ 2] Every octave is made of twelve steps called semitones.
List of set classes. Ninth chord. Open chord. Passing chord. Primary triad. Quartal chord. Root (chord) Seventh chord. Synthetic chord.
In music, a chord is a group of two or more notes played simultaneously, typically consisting of a root note, a third, and a fifth. [ a ] Chords are the building blocks of harmony and form the harmonic foundation of a piece of music. They can be major, minor, diminished, augmented, or extended, depending on the intervals between the notes and ...
The Tristan chord analyzed as a French sixth (in red) with appoggiatura and dominant seventh with passing tone in A minor. [ 6 ] The chord is an augmented sixth chord, specifically a French sixth chord, F–B–D ♯ -A, with the note G ♯ heard as an appoggiatura resolving to A. (Theorists debate the root of French sixth chords.) The harmonic ...
These indicate a chord formed by the notes C–E–G ♯ –B ♭. The three parts of the symbol (C, aug, and 7) refer to the root C, the augmented (fifth) interval from C to G ♯, and the (minor) seventh interval from C to B ♭ . Although they are used occasionally in classical music, typically in an educational setting for harmonic analysis ...
Quintal harmony (the harmonic layering of fifths specifically) is a lesser-used term, and since the fifth is the inversion or complement of the fourth, it is usually considered indistinct from quartal harmony. Because of this relationship, any quartal chord can be rewritten as a quintal chord by changing the order of its pitches.
The Neapolitan chord was a favourite idiom among composers in the Classical period. In his Piano Sonata in C minor, "a masterpiece of tragic power," [14] Haydn uses the chord (D ♭ in the key of C minor) as he brings the opening statement of his first subject to a close: The first movement of Haydn's Piano Sonata in C minor, mm. 5–8
The last two bars, played with overlapping hands, are a denser cluster. A tone cluster is a musical chord comprising at least three adjacent tones in a scale. Prototypical tone clusters are based on the chromatic scale and are separated by semitones. For instance, three adjacent piano keys (such as C, C ♯, and D) struck simultaneously produce ...