In some eyes, Koprowski has been living a life of a character from a play by Ionesco or Mrozek. The absurdity of the events that followed one another, became, to large an extent, a model for his music. He concurred with those who described his composition as “the music of the absurd”. He singled out his best composition, the Flute Concerto as the clearest example of it.
The first decade of the new Millennium brought a sense of relative stability in his life. The quality of his life improved. He wrote his Millennium Cantata and in 2006, in Carnegie Hall, New York his Elegia for Polish Youth received its US premiere.
In 2005, the Polish president bestowed Order Polonia Restituta upon him.
In 2009 he became the holder of the National Arts Centre Award for Canadian Composers.