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It is an ancient instrument, in the same category as other traditional lip-reed wind instruments, made from a variety of materials,from branches to animal horns to conch shells, and found in many cultures around the world. Archaeological records show the didjeridu is at least 1500 years old,and it may be much older than that, possibly even one of the oldest wind instruments ever invented anywhere.

Didjeridu traditions center in Arnhem Land, the largest Aboriginal freehold area in Australia. It is located at the "top end" ofAustralia's Northern Territory (its north central state). There are actually three distinct musical traditions in this area, which include differentdidjeridu playing styles. For example, in eastern Arnhem land, players tend to alternate rapidly between the two easily-available pitches (see below ); in the central area the alternation between the two is slower, and players in the Western part of the area tend to play onlythe fundamental, deriving interest from variation in timbre and other techniques (Listen to the audio file above for more about this).

Some musical events in Australian Aboriginal communities have intense religious and cultural significance and are not open to the public; specific instruments andplayers are called for on these occasions. Other events are open-to-the-public performances. Although playing the didjeridu is traditionally considered a man'sjob, and Aboriginal people may consider a didjeridu-playing woman to be shocking or humorous (in the same way that an American might consider it shocking orhumorous to see a man wearing a dress), there are no particular proscriptions against outsiders playing the instrument.

In fact, in recent times, the world music movement has created widespread interest in Non-Western musical traditions, including instruments such as the didjeridu, which now are sometimes included in cross-tradition ensembles. As of this writing the band Yothu Yindi has had the greatest impact in introducing the didjeridu to the rest of the world. MostAboriginal Australians have no problem with the idea of the instrument being used in non-traditional ways, but some are troubled by the mass production ofpoorer-quality, inauthentic instruments, and by schools of playing that claim, but do not really have, a link with Aboriginal traditions, considering this tobe a form of intellectual-property theft from their culture.

Sound, performance, and repertoire

Traditionally, a single didjeridu player accompanies one or more singers. The singers may also be playing percussioninstruments, such as bilma (clapsticks), and there may also be dancing. The didjeridu player learns the repertoire from other accomplished players ratherthan reading music. Boys and young men are encouraged to play the instrument for fun, and the most promising ones are trained to become the community's didjeriduplayers, the ones who are asked to play at ceremonies and performances. The most typical kind of performance is a series or cycle of short songs; each song hasits standard rhythm, and the didjeridu player is expected to both keep the basic rhythm and to improvise variations on it, somewhat as a good jazz drummerwould.

Questions & Answers

Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
Kate Reply
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Kate Reply
what is the change in momentum of a body?
Eunice Reply
what is a capacitor?
Raymond Reply
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
Maria Reply
please solve
Sharon
8m/s²
Aishat
What is Thermodynamics
Muordit
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
Saheed Reply
50 m/s due south east
Someone
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
Ramon Reply
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
Someone
definitely of physics
Haryormhidey Reply
how many start and codon
Esrael Reply
what is field
Felix Reply
physics, biology and chemistry this is my Field
ALIYU
field is a region of space under the influence of some physical properties
Collete
what is ogarnic chemistry
WISDOM Reply
determine the slope giving that 3y+ 2x-14=0
WISDOM
Another formula for Acceleration
Belty Reply
a=v/t. a=f/m a
IHUMA
innocent
Adah
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
Nassze Reply
how do lnternal energy measures
Esrael
Two bodies attract each other electrically. Do they both have to be charged? Answer the same question if the bodies repel one another.
JALLAH Reply
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you. Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Robert
like charges repel while unlike charges atttact
Raymond
What is specific heat capacity
Destiny Reply
Specific heat capacity is a measure of the amount of energy required to raise the temperature of a substance by one degree Celsius (or Kelvin). It is measured in Joules per kilogram per degree Celsius (J/kg°C).
AI-Robot
specific heat capacity is the amount of energy needed to raise the temperature of a substance by one degree Celsius or kelvin
ROKEEB
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Source:  OpenStax, Musical travels for children. OpenStax CNX. Jan 06, 2010 Download for free at http://cnx.org/content/col10221/1.11
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