[长号]Trombone(英),也叫“拉管”或“伸缩喇叭”,铜管乐器.号身可以自由伸缩,能奏出半音音阶和连续级进的滑音.强奏辉煌,弱奏柔和,宜奏庄严、豪放、气势雄浑的旋律.长号分中音、下中音与低音三种.后两种在乐队中经常使用,用 F 谱号与次中音谱号记谱,实际音高与记谱同.现今另有下中音与低音两用的装有活塞的长号,可将音域降低四度,演奏也较方便,但其音色远不如拉管长号优美.[大号]Tuba(英),俗称“抱贝司”.铜管乐器.号嘴呈碗形,号身粗大.音色低沉 [Trombone] Trombone (English), also known as “pull the tube” or “trombone”, brass instrument. The body can be freely scalable, can play a chromatic scale and continuous progressive glissando. , Should play a solemn, bold, imposing momentum of the melody.The trombone points in the middle, the middle and bass three.The latter two are often used in the band, with the F clef and the treble clef notation, the actual sound High and notation with today’s other alto and bass dual-use piston trombone, the range can be reduced four degrees, playing is also more convenient, but its sound is far less beautiful than the trombone trumpet. ] Tuba (British), commonly known as “holding a bass.” Brass instrument. Mouth mouth-shaped bowl, size thick. Tone low