Per Gunnar Fredrik de Frumerie (20 July 1908 – 9 September 1987) was a Swedish composer and pianist.
He was the son of architect Gustaf de Frumerie and Maria Helleday.
His works possess a Brahmsian complexity mixed with an impressionistic elegance.
One can relate his music to such composers as Lars-Erik Larsson or Wilhelm Peterson-Berger.
It was specifically written for the Swedish trombone virtuoso Christian Lindberg.