The capacity of our memories is limited, says Su, and not allowing a musician to read from a score necessarily limits one to a very small repertoire. It also puts a musician in a nervous state in which he or she will make a lot of mistakes.
畢竟一個人的記憶力有限，不准看譜之下，往往只能唱奏固定幾首曲子，而且膽顫心驚、錯誤甚多。