Can it be a mere coincidence that in many English dictionaries the words mushroom and music are right next to each other? Points of contact between mushrooms and new music go beyond the figure of the self-proclaimed mushroom-lover John Cage.
One fundamental similarity is the fact that both exist in marginal social zones whose inhabitants are often dismissed as other-worldly weirdos. In the early 21st century there is only a difference in degree between the social acceptability of composers and woodland gnomes.
This according to “‘After all, nature is better than art’: Exkursionen ins verborgene Verhältnis von Pilzen und (neuer) Musik” by Dirk Wieschollek (Neue Zeitschrift für Musik CLXXIII/1  pp. 32–37).