Karl Vilhelm Daniel Jeisler was born on 8 December 1877 in Klockrike, Sweden, and died in Paris on 6 May 1959. After studies in Stockholm, Jeisler travelled to Paris, where he worked as a pianist, composer and organist. His output was prodigious and included music drama, orchestral works, chamber music, songs and works for piano and organ. He was married to the eminent cellist Marguérite Caponsacchi and accompanist for, amongst others, the legendary Pablo Casals.