Timbre varies when playing different roles, while the vibrato of timbre has a direct affect on human nerve system to express ideal feelings of singers and beauty of the work.

• 作品中的音色需要随音乐形象的不同而变化,同时演唱者音色的振动波变化又直接作用人的神经系统,经大脑辨别出理想的音色,去表达理想的感情,使作品释放出美的光彩。