Compared to the saxophone s, the cone-shaped bore of the octavin has a smaller taper. Construction It has a similar shape with the bassoon with two parallel divisions attached at the base. A bell made of metal is at the top of one division and the mouthpiece is fastened to the other division s top. It is constructed with wood and the only metal section is the bell. It is a cylinder-shaped tube with usually a single reed. It has at least two parts and has a sliding joint or bridle which manipulates the pitch. Construction A constant air supply is provided by the bagpipe s construction. The air flow could be maintained in the chanter and drone pipes through using the left hand to squeeze the bag during breathing periods. Adjusting the mouth s position and controlling how much wind goes through the bugle produces the tones. 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. The tuba is one of the newest members of the modern symphony orchestra. It was first publicly played in the middle of the 19th century when it took the place of the ophicleide. The player produces sound by vibrating his lips against a large cup-shaped mouthpiece. The term tuba is Latin for horn or trumpet. 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. This is a transposing instrument pitched in F. The alto role is done by the oboe d amore which is pitched in A. A less popular member of the oboe family is the bass oboe or baritone oboe which is one octave lower compared to the oboe. Similar to this instrument is the heckelphone which is measured as more powerful and has a wider bore.