現代音楽のパイオニアとしての自らの役割は終わったと語る高橋悠治氏。
ttp://www.thomasschultzpianist.com/Links_/Takahashi_Essay/takahashi_essay.html

I played The People United so many times in the 1970s all over
Japan, not only on the usual concerts, but also for workers, for
political activists, sometimes combined with speeches and singing
of the original song. I arranged for it to be published by Zen-On
(this later turned out to have been a mistake). I recorded it around
that time. It was a time when we were Maoists or at least some
kind of leftists.

Now I don't play it anymore - not only that piece, but many pieces
I used to play like Evryali and Synaphai of Xenakis, many Takemitsu
pieces, Messiaen, Boulez, Cage, etc. I am bored of being a pianist for
contemporary (European) music.

I think there is a time when one has to do certain things, not only in
life, but also in music. In the 1960s, I was one of very few pianists in
Europe who played Xenakis, Boulez, Messiaen and Cage. I translated
and published Xenakis' book, Maceda's book, introduced Gubaidulina
to Japan. Now other people take over. I consider myself a pioneer.
As Mao the poet said in his "Ode to the Plum Tree": "not competing
for spring/ only calling that it is coming/when mountain flowers are in
full bloom/be among them smiling". Now many people play them so
I don't have to do those works anymore.It should be so - music will
be passed to the new generation. If the same people had continued
to play the same music, those works would not survive.