Instruct: Given a question, retrieve documents that answer the question.
Query: How expensive are whistles?
Falling Whistles sells whistles for $34 to $104 to raise money for education, advocacy, and the rehabilitation of war-affected people in Congo. The organization got its name from a journal written by its founder, sharing his experiences during a trip to eastern Congo in 2008. During that trip, Falling Whistles' founder met a group of five former child soldiers who told him that some children who were too young to carry weapons were sent into battle armed only with whistles. By wearing whistles, the campaign aims to use this weapon as a tool of protest and to raise awareness of the situation in Congo. As of September 2010, $500,000 has been raised.
The flute is one of the oldest and most widely used wind instruments. The precursors of the modern concert flute were keyless wooden transverse flutes similar to modern fifes. These were later modified to include between one and eight keys for chromatic notes.
The Meyer flute was a popular flute in the mid 19th century. Including and derived from the instruments built by H.F. Meyer from 1850 to the late 1890s, it could have up to 12 keys and was built with head joints of either metal-lined ivory or wood. The final form was a combination of a traditional keyed flute and the Viennese flute, and became the most common throughout Europe and America. This form had 12 keys, body of wood, head joint of metal and ivory, and was common at the end of the century.
A trumpet is a brass instrument commonly used in classical and jazz ensembles. The trumpet group contains the instruments with the highest register in the brass family. Trumpet-like instruments have historically been used as signaling devices in battle or hunting, with examples dating back to at least 1500 BC; they began to be used as musical instruments only in the late 14th or early 15th century. Trumpets are used in art music styles, for instance in orchestras, concert bands, and jazz ensembles, as well as in popular music. They are played by blowing air through nearly-closed lips (called the player's embouchure), producing a "buzzing" sound that starts a standing wave vibration in the air column inside the instrument. Since the late 15th century they have primarily been constructed of brass tubing, usually bent twice into a rounded rectangular shape.
The second instrument was originally the fife, replaced in the modern British Army by the five key flute. A wide variety of flutes and pitches is used. The fife and later the flute have been favoured as a warlike instrument due to shrill pitch and thus the ability to be heard above the noise of battle. Many tunes such as The British Grenadiers are traditionally played by military flutes. Fifes and keyed flutes were typically pitched in B-flat, but the flute family eventually expanded to include a Piccolo in E-flat, a perfect fourth higher, and a flute pitched in F, a perfect fourth lower than the B-flat flute. There was also a "B-flat Bass" which was pitched an octave below the B-flat flute. Occasionally the B-flat flute is known as the "Treble" in order to avoid confusion with the B-flat bass flute. The development of this family of flutes facilitated the development of flute band part music which in many ways imitates the style of larger military bands.
Blue-footed boobies make raucous or polysyllabic grunts or shouts and thin whistling noises. The males of the species have been known to throw up their head and whistle at a passing, flying female. Their ritual displays are also a form of communication.
Certain low brass instruments such as trombone, tuba, euphonium, and alto horn are whole-tube and can play the fundamental tone of each harmonic series with relative ease. Furthermore, the low brass often use extra valves to extend their range uniformly, since the fundamental is chromatically discontinuous with the lowest 2nd harmonic reachable on a three-valve instrument or via the seven-position slide on a trombone. Trombone and tuba in particular are often called upon to play pedal notes (fundamental notes) and so-called "false harmonics" and "false tones" below their normal range.
In 1980 the Whitney Museum of American Art paid $1 million for "Three Flags" (1958), then the highest price ever paid for the work of a living artist. In 1988, Johns' "False Start" was sold at auction at Sotheby's to Samuel I. Newhouse, Jr. for $17.05 million, setting a record at the time as the highest price paid for a work by a living artist at auction, and the second highest price paid for an artwork at auction in the U.S. In 2006, private collectors Anne and Kenneth Griffin (founder of the Chicago-based hedge fund Citadel LLC) bought "False Start" (1959) from David Geffen for $80 million, making it the most expensive painting by a living artist. On November 11, 2014, a 1983 version of "Flag" was auctioned at Sotheby's in New York for $36 million, establishing a new auction record for Johns.
The flute is a transverse (or side-blown) woodwind instrument that is closed at the blown end. It is played by blowing a stream of air over the "embouchure hole". The pitch is changed by opening or closing keys that cover circular tone holes (there are typically 16 tone holes). Opening and closing the holes produces higher and lower pitches. The direction and intensity of the airstream also affects the pitch, timbre, and dynamics.
It is available as a generic medication and not very expensive. Wholesale it costs between 0.03 and 0.13 a dose. In the United States it is sold for about 0.40 per dose.
"Put Down Your Whip" was sold on 7 April 2007 in an auction in Hong Kong by Sotheby's for HK$72 million (US$9.2 million), setting a record for the highest price ever paid for a Chinese painting at an auction. The painting was bought by an anonymous collector over the telephone after competition from at least four other bidders.
There is some confusion with modern players in that a modern Boehm keyed system flute is typically pitched in C. This is due to the added keys that allow one to reach low C, yet when one covers just the six main finger-holes (with thumb key covered) on a modern metal Boehm system flute, (XXX-XXX) the note achieved is D. For many technical reasons, a simple system D wooden flute more closely mirrors a concert C modern Boehm system flute in the pitches achieved in its fingering positions as opposed to a simple system flute pitched in C. Theobald Boehm completely redesigned the flute to more easily access the chromatic scale. The Boehm flute has a cylindrical bore (with a parabolic bore in the head) and uses keys to enable the tone holes to be in the ideal place and to be of the ideal size.
Historic Native American flutes are generally tuned to a variation of the minor pentatonic scale (such as you would get playing the black keys on a piano), which gives the instrument its distinctive plaintive sound. Recently some makers have begun experimenting with different scales, giving players new melodic options. Also, modern flutes are generally tuned in concert keys (such as A or D) so that they can be easily played with other instruments. The root keys of modern Native American flutes span a range of about three and a half octaves, from C2 to A5.
The ease with which a player produces the fundamental note of each harmonic series for each tubing length of a modern brass instrument varies with the instrument's design. As bore width increases relative to length, it becomes easier for the player to resist the instrument's tendency to jump to the second harmonic instead of producing the fundamental frequency. Brass instruments with sufficient bore to allow the "whole tube" to vibrate easily, as opposed to "half the tube" (i.e., the second harmonic), are called "whole-tube" instruments.
In 1857, Édouard-Léon Scott de Martinville invented the phonautograph, the first device that could record sound waves as they passed through the air. It was intended only for visual study of the recording and could not play back the sound. The recording medium was a sheet of soot-coated paper wrapped around a rotating cylinder carried on a threaded rod. A stylus, attached to a diaphragm through a series of levers, traced a line through the soot, creating a graphic record of the motions of the diaphragm as it was minutely propelled back and forth by the audio-frequency variations in air pressure.
A musical instrument that appears to be a pogo cello was invented and first patented in 1951 by a carpenter named Vincent Lyle Badkin. According to his grandson, Vincent L. Badkin, he performed with a group in New Jersey called Zimmies Zombies. The pogo cello was commercially manufactured in the 1950s in Brooklyn, New York by a chemist and musical instrument manufacturer, Mack Perry, the husband of a music educator, Sylvia Perry. Apparently Badkin had asked Perry to manufacture the instrument. It is unclear what influenced Badkin in his design, perhaps a similar instrument called a bumbass (boombas, boomba, or boom bass) also known as a stump fiddle (or stumpf fiddle). Perry manufactured pogo cellos in Brooklyn and Far Rockaway, New York and in New Jersey. The pogo cello was sold across the United States for decades as a musical instrument for children, but many adults also bought them for themselves.
A samba band normally consists of Tamborims
, Snare drums (Caixa), Agogo bells, surdos, Ganzás / Chocalho (shakers), Cuíca, Timbal, Pandeiro, and the Repinique (often played by the leader for calls) whistles (at the beginning to give the samba a beat). The Apito is often used by the leader to signal breaks and calls. 
Other instruments have been added in many samba bands such as frigideira, 4 stringed guitars, 7 stringed guitars, trombones and Singers.
A small set of samba drums in the UK costs around £300. More expensive sets come with more drums enabling more players to join; a convenience due to how many would usually take place in the orchestra. 
In Brazil, bands traditionally play Samba (carnival rhythms of the samba schools of Rio de Janeiro). In other countries they now play reggae, funk, hip hop and Brazilian folk music. Like other drumming bands the music exceeds 130 decibels but often this attracts listeners. Some samba bands have eccentric costumes whilst others have costumes themed around their religions/ animals.
The first balls were made of natural materials, such as an inflated pig bladder, later put inside a leather cover, which has given rise to the American slang-term "pigskin". Modern balls are designed by teams of engineers to exacting specifications, with rubber or plastic bladders, and often with plastic covers. Various leagues and games use different balls, though they all have one of the following basic shapes:
Wildebeest provide several useful animal products. The hide makes good-quality leather and the flesh is coarse, dry and rather hard. Wildebeest are killed for food, especially to make biltong in Southern Africa. This dried game meat is a delicacy and an important food item in Africa. The meat of females is more tender than that of males, and is the most tender during the autumn season. Wildebeest are a regular target for illegal meat hunters because their numbers make them easy to find. Cooks preparing the wildebeest carcass usually cut it into 11 pieces. The estimated price for wildebeest meat was about US$0.47 per kilogram around 2008. The silky, flowing tail of the black wildebeest is used to make fly-whisks or "chowries".
The rattle is composed of a series of hollow, interlocked segments made of keratin, which are created by modifying the scales that cover the tip of the tail. The contraction of special "shaker" muscles in the tail causes these segments to vibrate against one another, making the rattling noise (which is amplified because the segments are hollow) in a behavior known as tail vibration. The muscles that cause the rattle to shake are some of the fastest known, firing 50 times per second on average, sustained for up to three hours.
Whang was born in Seoul and relocated to Busan in the fifth grade of elementary school. In 1985, at age fifteen, she moved to the United States with her family. During her sophomore year in high school, she received an acoustic guitar as a birthday gift and started playing and writing music in her diary. She graduated from Rush–Henrietta Senior High School, and began college at the Pratt Institute in art studies. She and a male college friend formed the duo Sun & Fish and started busking on the streets of New York City. She then left college, without graduating, for an "extended tramp around the world to find herself and her voice", visiting Japan, Vietnam, France and Thailand.
In September 2016, after acquiring TWC, Charter indicated it would price the 2017 season above $4.50. “[The previous] deal is no longer on the table—it didn’t work,” said Charter Chief Executive Thomas Rutledge to the "Los Angeles Times". “We would love to sell the channel to others, but no one has bought it—and we are not giving it away. So if consumers want the Dodger channel, they’ll need to subscribe to us to get it.”
Gaining popularity as a folk instrument in the early 19th century in the Celtic music revivals, penny whistles now play an integral part of several folk traditions. Whistles are a prevalent starting instrument in English traditional music, Scottish traditional music and Irish traditional music, since they are often cheap (under US$10), relatively easy to start with (no tricky embouchure such as found with the flute), and the fingerings are nearly identical to those on the traditional six holed flute (Irish flute, baroque flute). The tin whistle is a good starting instrument to learn the uilleann pipes, which has similar finger technique, range of notes and repertoire. The tin whistle is the most popular instrument in Irish traditional music today.
The enzyme belongs to the group of oxidoreductases according to the EC classification and is dependent on FAD as cofactor, thus it was classified as an external flavoprotein monooxygenase (designated as type E). It forms a two-component system with a reductase (StyB, StyA2B). The reductase utilizes solely NADH to reduce the FAD, which is then transferred to the styrene monooxygenase (StyA, StyA1). Two types of that enzyme are described so far: StyA/StyB (designated E1), first described from "Pseudomonas" species, and StyA1/StyA2B (designated E2), first described from Actinobacteria. The E1-type is more abundant in nature and comprises a single monooxygenase (StyA) supported by a single reductase (StyB), whereas the E2-type has a major monooxygenase (StyA1) which is supported by fusion protein of a monooxygenase and reductase (StyA2B). The latter one is the source of reduced FAD for the monooxygenase subunits and has some side activity as a monooxygenase. So far all styrene monooxygenases perform enantioselective epoxidations of styrene and chemically analogous compounds, which makes them interesting for biotechnological applications.
It is common to score music for the whistle using standard musical notation. The tin whistle is not a transposing instrument - for example, music for the D tin whistle is written in concert pitch, not transposed down a tone as would be normal for transposing instruments. Nevertheless, there is no real consensus on how tin whistle music should be written, or on how reading music onto the whistle should be taught. However, when music is scored for a soprano whistle it will be written an octave lower than it sounds, to spare ledger lines and make it much easier to read.