John Cage's most groundbreaking and of course the most famous musical work in his life is 4 minutes and 33 seconds (premiered at 1952), which consists of three movements, suitable for any instrument and any number of players, with a total length of 4 minutes and 33 seconds. There are no notes on the score, and the only requirement indicated is "Tacet". The significance of the work is to ask the audience to listen carefully to the silence at that time and experience all the occasional sounds in the silence. This also represents an important philosophical point of Cage's music: the most basic element of music is not playing, but listening.