Orchestra
An orchestra ( ; OR-ki-strə) is a large instrumental ensemble typical of classical music, which combines instruments from different families. There are typically four main sections of instruments:
The string section, including the violin, viola, cello, and double bass
The woodwind section, including the flute, oboe, clarinet, bassoon, and occasionally saxophone
The brass section, including the French horn (commonly known as the "horn"), trumpet, trombone, cornet, and tuba, and sometimes euphonium
The percussion section, including the timpani, snare drum, bass drum, cymbals, triangle, tambourine, tam-tam and mallet percussion instruments
Other instruments such as the piano, harpsichord, pipe organ, and celesta may sometimes appear in a fifth keyboard section or may stand alone as soloist instruments, as may the concert harp and, for performances of some modern compositions, electronic instruments, and guitars.
A full-size Western orchestra may sometimes be called a symphony orchestra or philharmonic orchestra (from Greek phil-, "loving", and "harmony"). The number of musicians employed in a given performance may vary from seventy to over one hundred, depending on the work being played and the venue size. A chamber orchestra (sometimes a concert orchestra) is a smaller ensemble of not more than around fifty musicians. Orchestras that specialize in the Baroque music of, for example, Johann Sebastian Bach and George Frideric Handel, or Classical repertoire, such as that of Haydn and Mozart, tend to be smaller than orchestras performing a Romantic music repertoire such as the symphonies of Ludwig van Beethoven and Johannes Brahms. The typical orchestra grew in size throughout the 18th and 19th centuries, reaching a peak with the large orchestras of as many as 120 players called for in the works of Richard Wagner and later Gustav Mahler.
Orchestras are usually led by a conductor who directs the performance with movements of the hands and arms, often made easier for the musicians to see by using a short wooden rod known as a conductor's baton. The conductor unifies the orchestra, sets the tempo, and shapes the sound of the ensemble. The conductor also prepares the orchestra by leading rehearsals before the public concert, in which the conductor provides instructions to the musicians on their interpretation of the music being performed.
The leader of the first violin section – commonly called the concertmaster – also plays an important role in leading the musicians. In the Baroque music era (1600–1750), orchestras were often led by the concertmaster, or by a chord-playing musician performing the basso continuo parts on a harpsichord or pipe organ, a tradition that some 20th-century and 21st-century early music ensembles continue.
Orchestras play a wide range of repertoire, including symphonies, opera and ballet overtures, concertos for solo instruments, and pit ensembles for operas, ballets, and some types of musical theatre (e.g., Gilbert and Sullivan operettas).
Amateur orchestras include youth orchestras made up of students from an elementary school, a high school, or a university, and community orchestras; typically they are made up of amateur musicians from a particular city or region.
The term orchestra derives from the Greek ὀρχήστρα (orchestra), the name for the area in front of a stage in ancient Greek theatre reserved for the Greek chorus.
Interstellar
- 2025-03-13T00:00:00.000000Z
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