He visited Yunnan, Hebei, Guangxi, Jiangsu and other places for many times, and made an in-depth investigation on ethnic and folk music, and collected many precious music materials. At the same time, a lot of research has been done in traditional Chinese opera music and religious music.

Yang has made great achievements in the study of China's music history. As early as 1925, he wrote a paper "Outline of China Music History" in English. 198 1 year completed the first draft of China Ancient Music History, which was published by People's Music Publishing House in 650,000 yuan and 19565438. This is the fruitful result of his comprehensive research on music history, national music and temperament, which makes the music history of China a music history with scores.

Through calculation and experiment, the monographs and papers on music law were published, which raised the research on the problems and history of music law often encountered in China's national music practice to a new level.

He has made considerable achievements and contributions to the development, rescue, collection, arrangement and research of China's national music heritage, including folk music, opera music and religious music.

He is very concerned about the music industry in his hometown. Every time he returned to Wuxi, he always guided the folk music group "Huaguang Chinese Orchestra" and took pains to demonstrate. I was so excited that I even agreed to lead the performance.

He once ranked the quality of old mahogany pipa for Wuxi Musical Instrument Store, solved the problem of bamboo flute intonation and improved the quality of musical instruments. According to a large number of experimental results, a flute ruler is made, which can open flute holes according to the ruler.