For the didgeridoo to have the correct pitch, the stick will be shortened to approximately 1 to 3 meters. To have a smoother edge, the mouthpiece could also be lined with beeswax. Shapes of didgeridoos Didgeridoos do not have a standard or uniform size or shape. The tube s length and its almost conical shape affect the acoustic performance of every individual instrument. A lot of banjo players prefers to use titanium or model railroad spikes to keep the string pushed down on the fret. Modern Banjo There many variations of the modern banjo. Increasing its popularity is the six-string banjo which is played like a guitar. The modern banjo s body, sometimes referred to as pot, has a metal ring, circular wooden rim, and a stretched head. Castanets were played to evoke or give out a Spanish aura in many works such as in Carmen by Georges Bizet and Espa a by Emmanual Chabrier. They were also included in the opera of Richard Strauss entitled Salome specifically in the Dance of the Seven Veils. It was given a solo by a few musicians such as Helmut Timpelan, a German composer, and Jos de Udaeta, a castanet maestro. One is the end-blown flute which has a hole on both ends. The other is the transverse flute which is held horizontally with the embouchure hole only near one end. How does the flute work? A rapid jet of air blown by the flute player from the mouthpiece is the source of power for playing the instrument. On the other hand, the E flat tuba produces sound that is an octave higher than the contrabass tubas and is the customary orchestral tuba in the United Kingdom. The tenor tuba, also called euphonium, is pitched one octave above the contrabass tuba, B flat. B flat valve tubas are sometimes specifically called tenor tuba. Choosing your harmonica When choosing your harmonica, you should keep these in mind. Wood harmonicas may cost less and have a warmer sound but these are sensitive to moisture while metal harmonicas have higher integrity but are expensive and have more probability of corrosion. Plastic harmonicas are very easy to maintain and play but these can crack faster than others.