Unfortunately, schools of modern classical music struggled to hold their audiences even in the West, and audiences found it harder and harder to connect with the Taiwanese modern music of which Hsu was the leading figure. Opinion has remained polarized about the worth of this music.
可惜現代樂派即使在國外都因聽眾日稀而無以為繼，以許常惠為首的台灣現代音樂創作也始終缺乏共鳴，徒然留下了褒貶互見的兩極評價。