该型乐器激发了表演者的信心——它可靠，拥有好的全范围的音准以及管子本身很轻和灵活的键系统。
The type of instrument that inspires confidence in a performer - it feels reliable, has good all round intonation as well as light and responsive key work.
表演者对设施用后评价：表演者对专门型设施的满意度均达满意，而对非专门型设施的满意度较低。
The post occupancy evaluation of performers: the performers' evaluation of professional facilities is good but the performers have low satisfaction with the non-professional facilities.
表演者特性：职业型表演者多使用室内专门型设施，业馀者则使用各种设施。
The performers' characters: Most professional performers use indoor facilities but non-professional performers use all kinds of facilities.
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