<?xml version="1.0" encoding="utf-8"?> <text> <s id="1"> <w id="1.1">Vào</w> <w id="1.2">giữa</w> <w id="1.3">thế</w> <w id="1.4">kỷ</w> <w id="1.5">16</w> <w id="1.6">,</w> <w id="1.7">người</w> <w id="1.8">Ý</w> <w id="1.9">đã</w> <w id="1.10">bị</w> <w id="1.11">thu</w> <w id="1.12">hút</w> <w id="1.13">bởi</w> <w id="1.14">những</w> <w id="1.15">nam</w> <w id="1.16">ca</w> <w id="1.17">sĩ</w> <w id="1.18">có</w> <w id="1.19">quãng</w> <w id="1.20">giọng</w> <w id="1.21">đáng</w> <w id="1.22">kinh</w> <w id="1.23">ngạc</w> <w id="1.24">thường</w> <w id="1.25">được</w> <w id="1.26">cho</w> <w id="1.27">là</w> <w id="1.28">không</w> <w id="1.29">thể</w> <w id="1.30">với</w> <w id="1.31">đàn</w> <w id="1.32">ông</w> <w id="1.33">trưởng</w> <w id="1.34">thành</w> <w id="1.35">.</w> </s> <s id="2"> <w id="2.1">Tuy</w> <w id="2.2">nhiên</w> <w id="2.3">,</w> <w id="2.4">món</w> <w id="2.5">quà</w> <w id="2.6">này</w> <w id="2.7">phải</w> <w id="2.8">trả</w> <w id="2.9">bằng</w> <w id="2.10">một</w> <w id="2.11">cái</w> <w id="2.12">giá</w> <w id="2.13">đắt</w> <w id="2.14">.</w> </s> <s id="3"> <w id="3.1">Để</w> <w id="3.2">ngăn</w> <w id="3.3">quá</w> <w id="3.4">trình</w> <w id="3.5">bể</w> <w id="3.6">giọng</w> <w id="3.7">,</w> <w id="3.8">những</w> <w id="3.9">ca</w> <w id="3.10">sĩ</w> <w id="3.11">này</w> <w id="3.12">phải</w> <w id="3.13">cắt</w> <w id="3.14">bỏ</w> <w id="3.15">tinh</w> <w id="3.16">hoàn</w> <w id="3.17">trước</w> <w id="3.18">khi</w> <w id="3.19">dậy</w> <w id="3.20">thì</w> <w id="3.21">,</w> <w id="3.22">làm</w> <w id="3.23">ngắt</w> <w id="3.24">quãng</w> <w id="3.25">quá</w> <w id="3.26">trình</w> <w id="3.27">sản</w> <w id="3.28">sinh</w> <w id="3.29">hóoc-môn</w> <w id="3.30">khiến</w> <w id="3.31">giọng</w> <w id="3.32">của</w> <w id="3.33">họ</w> <w id="3.34">trầm</w> <w id="3.35">hơn</w> <w id="3.36">.</w> </s> <s id="4"> <w id="4.1">Biết</w> <w id="4.2">đến</w> <w id="4.3">như</w> <w id="4.4">những</w> <w id="4.5">Castrato</w> <w id="4.6">,</w>