433 was more of a statement/exercise in listening. It's interesting to explore the edges of what counts as music, but in practice, people can tell when something is music made for enjoyment by other people.
Enjoyment is a strong word! Some music is written to share ideas and experiments, so it might not be 'enjoyable' to listen to, but 'interesting' - kind of like the difference between reading a Harry Potter book which is engaging and doesn't ask too much of you, and Spinoza, which requires your full attention.
Enjoyment is a strong word! Some music is written to share ideas and experiments, so it might not be 'enjoyable' to listen to, but 'interesting' - kind of like the difference between reading a Harry Potter book which is engaging and doesn't ask too much of you, and Spinoza, which requires your full attention.