《梁书·列传·卷十三》
但是高祖还是不太遵循和使用沈约的《四声谱》。儿子沈旋，沈约在世时已历任中书侍郎，永台太守，司徒从事中郎和司徒右长史。
子旋，及约时已历中书侍郎，永嘉太守，司徒从事中郎，司徒右长史。
However, Emperor Gaozu did not really follow or use Shen Yue’s “Four-tone Spectrum”. His son Shen Xuan, when Shen Yue was alive, had served as Master of Attendants, Grand Administrator of Yongtai, Master of the Left of the Minister of the Masses, and Master of the Right of the Minister of the Masses.