At times, these are fastened to the handle or placed on a base forming machine castanets. Playing the castanet in the Spanish style is very rare in the modern orchestra. This is not because it is very complex to master and apply but because there are no more than four known professional castanet players all over the world. Sax s primary key work was very basic which made wide intervals quite hard to finger. Because of this, many developers and instrument makers added alternate fingerings and more keys to make playing less difficult. One of the most significant advancements in its key work was that both tone holes can be controlled by the left thumb using one octave key. These are the contrabass trombone, bass trombone, tenor trombone, alto trombone, soprano trombone, and sopranino and piccolo trombones. Playing the trombone There are seven possible positions of the trombone. To vary the pitch, the player adjusts the lip shape. The contracting or relaxing of ones lips changes the sound produced by the trombone. Parts The many parts of the sitar are the kuntis or tuning pegs, drone strings, tumba or gourd, baj tar or playing string, tarafdar or sympathetic strings, dandi or neck, parda or frets, gulu or cowl, ghoraj or bridge, tuning beads, tabkandi or face plate, and kaddu or resonator. Playing the sitar The instrument should be placed between the player s right knee and left foot with the left leg under the former. Playing the tuba To assemble the tuba, position the mouthpiece in the tube with a gentle, twisting motion. Never pop or strike it into position. Remember to apply oil on the valves each day you play the tuba. Dismantle the valves one by one, put three oil drops, and place the valves back. You would know that the valve is not in the correct place if you blow hard but the air is blocked. It is the foundation for various other wind instruments and is groundwork for learning mouth control for playing instruments other than the bugle. Unfortunately, it can only play notes in the harmonic series. Modern bugles are made of copper or brass and are nearly exclusive to the military. These are pitched in B flat just like the trumpet.