The aforementioned are examples of "music" that could be heard as part of a 4'33" composition.
A symphony can be defined as an elaborate long piece of musical composition for an orchestra, which is usually in three or more movements (parts).
This ultimately implies that, a symphony is a lengthy form of musical composition which is primarily written to be performed by a full orchestra.
In this context, a 4'33" composition is a type of musical composition that uses a three-movement composition and it was created in 1952 by John Cage. Some examples of a 4'33" composition are:
Read more on symphony here: https://brainly.com/question/1151350