《南齐书·志·卷十一》
《永平乐歌》，是竟陵王萧于良和各位文士创作上奏的每人创作了十首曲子。
《永平乐歌》者，竟陵王子良与诸文士造奏之。人为十曲。
“Yongping Le”, which refers to the ‘Song of Yongping’, was created by every literati when they presented the King of Jingling and wrote ten musical pieces.