A slide whistle (variously known as a swanee or swannee whistle, lotos flute piston flute, or jazz flute) is a wind instrument consisting of a fipple like a recorder's and a tube with a piston in it. Thus it has an air reed like some woodwinds, but varies the pitch with a slide. The construction is rather like a bicycle pump. Because the air column is cylindrical and open at one end and closed at the other, it overblows the third harmonic. "A whistle made out of a long tube with a slide at one end. An ascending and descending glissando is produced by moving the slide back and forth while blowing into the mouthpiece." "Tubular whistle with a plunger unit in its column, approximately 12 inches long. The pitch is changed by moving the slide plunger in and out, producing ascending and descending glisses." Hornbostel–Sachs number: 421.221.312.
Piston flutes, in folk versions usually made of cane or bamboo, existed in Africa, Asia, and the Pacific as well as Europe before the modern, manufactured version was invented, apparently in England in the nineteenth century. The latter, which may be more precisely referred to as the slide or Swanee whistle, is commonly made of plastic or metal.
The modern slide whistle is perhaps most familiar in its use as a sound effect (as in the sound tracks of animated cartoons, when a glissando can suggest something rapidly ascending or falling, or when a player hits a "Bankrupt" on Wheel of Fortune), but it is also possible to play melodies on the slide whistle.
The swanee whistle dates back at least to the 1840s, when it was manufactured by the Distin family and featured in their concerts in England. Early slide whistles were also made by the English J Stevens & Son and H A Ward. By the 1920s the slide whistle was common in the USA, and was occasionally used in popular music and jazz as a special effect. For example, it was used on Paul Whiteman's early hit recording of "Whispering" (1920). Even Louis Armstrong switched over from his more usual cornet to the slide whistle for a chorus on a couple of recordings with King Oliver's Creole Jazz Band, such as "Sobbin' Blues" (1923). At that time, slide saxophones, with reeds rather than a fipple, were also built. The whistle was also widely used in Jug band music of the 1920s such as Whistler's Jug Band. Gavin Gordon uses a slide whistle in his ballet The Rake's Progress (1935).
The slide whistle is probably thought of today primarily as a kind of "toy" instrument, especially in the West, although it has been and continues to be used in various forms of "serious" music. Its first appearance in notated European classical music may have been when Maurice Ravel called for one in his opera L'enfant et les sortilèges. More modern uses in classical music include Paul Hindemith's Kammermusik No. 1, op. 24 no. 1 (1922), Luciano Berio's Passaggio, which uses five, and the Violin Concerto of György Ligeti, as well as pieces by Cornelius Cardew, Alberto Ginastera, Hans Werner Henze, Peter Maxwell Davies, and Krzysztof Penderecki (De Natura Sonoris II, 1971). John Cage's Music of Changes (1951) and Water Music (1952) both feature slide whistle and duck calls. The slide whistle is also used in many of the works of P. D. Q. Bach.
Bob Dylan played a siren whistle – a slide whistle that provides a siren-like sound – mounted in his harmonica holder, in his 1965 song "Highway 61 Revisited". Reportedly, during the sessions, keyboardists Al Kooper would sneak up on anyone using illicit substances, and then blow the whistle in an imitation of a police siren. Dylan then incorporated the instrument into the song, which is credited as "police car".
A more recent appearance of the slide whistle can be heard in the 1979 song "Get Up" by Vernon Burch. The slide whistle segment of this song was later sampled by Deee-Lite in their 1990 hit "Groove Is in the Heart". The Las Vegas-based band Holes and Hearts also used the slide whistle on their song "Dancing Monkey".
Fred Schneider of The B-52s plays a plastic toy slide whistle in live performances of the song "Party Out of Bounds" as a prop for the song's drunken partygoer theme, in place of the trumpet thus used in the studio for the Wild Planet song.
In 2011 the slide whistle enjoyed something of a revival, with top session players such as Seadna McPhail guesting on a host of top-selling pop albums.
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