In the musician history of Europe the castratos had held hegemony in the opera stage and created the "gold times" of sweet voice. 在欧洲音乐发展史上,出现过阉人歌手称霸歌剧舞台的现象,创造了美声歌唱的黄金时代。
Coloratura riff first appeared in Gregorian chant and was developed to its peak by Castratos in the 17th and 18th century. Since then, Coloratura becomes an indispensable important component in bel canto. 花腔唱法最早出现在格利高里圣咏中,在十七十八世纪时,由阉人歌手将其发展至鼎盛,从而使得花腔唱法成为美声唱法中一个不可或缺的重要组成部分。