1939年,词作家公木与作曲家郑律成同在抗日军政大学宣传科工作,宿舍也是两隔壁。郑律成看到公木在小本子上写了很多诗歌,他选了其中的一首《子夜岗兵颂》谱了曲,唱给公木听,公木听到自己的作品能唱出来后很是高兴。当时《黄河大合唱》已经首演,所以也有说是受《黄河》的影响,郑律成提议写一个《八路军大合唱》,公木欣然答应,并于当年8月完成了:《八路军军歌》、《八路军进行曲》《快乐的八路军》《骑兵歌》《炮 In 1939, the writer Song Gongzhu and composer Zheng Law Cheng in the propaganda section of the Anti-Japanese Military and Political University, dormitory is also next door. Zheng Luocheng saw Gong Mu wrote a lot of poetry in a small book, he chose one of the “son of Chung Yeung,” spectrum of music, singing to the public to listen to public, Gong Mu heard his work can sing very happy. At that time, the “Yellow River Chorus” had premiered, so it was also said that it was affected by the “Yellow River”. Zheng Luocheng proposed to write an “Eighth Route Army chorus.” Gong Mu readily agreed and was completed in August of that year: “Eighth Route Army Military Songs,” “Eighth Route Army March ”“ Happy Eighth Route Army ”“ cavalry song ”" gun