Original sentence: A performance of 4′33″ can be perceived as including the sounds of the environment that the listeners hear while it is performed,rather than merely as four minutes and thirty three seconds of silence and has become one of the most controversial compositions of the century
Edited sentence: Although 4′33″ in fact consists of the sounds of the environment that the listeners hear while it is performed, it is frequently erroneously perceived as four minutes, thirty three seconds of silence and has become one of the most controversial compositions of the century