引言“四声合音”在权威的《中国音乐词典》《中国大百科全书·音乐舞蹈卷》、互联网等都无该词条可查。而《穿洞之光夜郎遗韵》一书中却说:仙马“四声合音”是一项传统的民间表演艺术形式。“仙马四音和声一般至少由4人组合而成,多至几十上百人也可,同一首歌曲用四个不同但又和谐的曲谱 Introduction ”Four Sounds“ in the authoritative ”Chinese Music Dictionary“, ”Encyclopedia of China music and dance volume“, the Internet and so the entry is not available. The ”hole in the light of Yelang Rhyme,“ a book said: fairy horse ”four sound“ is a traditional form of folk performing arts. ”Xianma four-tone harmony is generally a combination of at least four people, up to dozens of hundreds of people can also be the same song with four different but harmonious score