Oh m1469, you do so make me think with your wonderful questions ! I've just had an absolutely delicious dinner with my absolutely delicious wife and three stiff brandies, not necessarily in that order, as Ronnie Barker would say. Did Aldous Huxley not praise the mental state engendered by the ingestion of the third cocktail ? I'll return when I can do your excellent question justice.
Anyway, all of those are as important as each other:- With no composer you ain't got a *** thing to play- With no student no one will learn what's been composed- With no teacher who can learn anything?- With no performer it'll achieve nothingness- With no supporter it'll achieve no fame
There's no need for me to comment now because Bernhard has summarised what I would have said.
Nice one. Me too.