Keyboard music in the context of Prelude (music)

⭐ Core Definition: Keyboard music

A keyboard instrument is a musical instrument played using a keyboard, a row of levers that are pressed by the fingers. The most common of these are the piano, organ, and various electronic keyboards, including synthesizers and digital pianos. Other keyboard instruments include celestas, which are struck idiophones operated by a keyboard, and carillons, which are usually housed in bell towers or belfries of churches or municipal buildings.

Today, the term keyboard often refers to keyboard-style synthesizers and arrangers as well as work-stations. These keyboards typically work by translating the physical act of pressing keys into electrical signals that produce sound. Under the fingers of a sensitive performer, the keyboard may also be used to control dynamics, phrasing, shading, articulation, and other elements of expression—depending on the design and inherent capabilities of the instrument. Modern keyboards, especially digital ones, can simulate a wide range of sounds beyond traditional piano tones, thanks to advanced sound synthesis techniques and digital sampling technology.

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⭐ Core Definition: Keyboard music
Keyboard music in the context of Prelude and fugue
Keyboard music in the context of Prelude and Fugue in G minor, BWV 861

Keyboard music in the context of Prelude and fugue

A prelude (German: Präludium or Vorspiel; Latin: praeludium; French: prélude; Italian: preludio) is a short piece of music, the form of which may vary from piece to piece. While, during the Baroque era, for example, it may have served as an introduction to succeeding movements of a work that were usually longer and more complex, it may also have been a stand-alone piece of work during the Romantic era. It generally features a small number of rhythmic and melodic motifs that recur through the piece. Stylistically, the prelude is improvisatory in nature. The term may also refer to an overture, particularly to those seen in an opera or an oratorio.

A prelude and fugue generally consists of two movements in the same key for solo keyboard. In classical music, the combination of prelude and fugue is one with a long history. Many composers have written works of this kind. The use of this format is generally inspired by Johann Sebastian Bach's two books of preludes and fugues — The Well-Tempered Clavier — completed in 1722 and 1742 respectively. Bach, however, was not the first to compose such a set: Johann Caspar Ferdinand Fischer wrote a 20-key cycle in his 1702 work Ariadne musica.

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Keyboard music in the context of Prelude and Fugue in G minor, BWV 861

The Prelude and Fugue in G minor, BWV 861, is No. 16 in Johann Sebastian Bach's Well-Tempered Clavier Book I, keyboard music consisting of 24 preludes and fugues in every major and minor key.

Bach's G minor fugue is "insistent and pathetic". The subject also appears in his funeral cantata Gottes Zeit ist die allerbeste Zeit (God's time is the very best time). The subject of the fugue employs a minor 6th leap in the first measure, then resolves it with a more conventional stepwise motion. Overall, the piece has a foreboding and admonishing tone.

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