The fertile land Pierre Boulez Paul Klee; identifications

'I was struck by the coherence,
as one could say,
brought about within the music itself.
Without the painter/musician Paul Klee,
who was the most poetic of all,
and without the poet René Char,
Pierre Boulez himself claims
that he never had become a composer.
sounds, images, words
About inner desert,
and the exuberant inner bloom
that Klee transferred on his canvases from Egypt,
the Nile, from the Valley of Kings.
And about Boulez' own contemplations
on the creative process:
both of them wrote theories of music,
theories of art.
creation
Most of all I was struck
by the constant alternation
of desert and bloom,
the myths that raise this synchronicity
of creation and downfall,
existential fear,
production and death.'
fertility