The peripatetic son of a cantor, Emanuel Moór (1863-1931) toured Europe and the U.S. frequently as a pianist and conductor. He composed prolifically in almost every classical medium and genre, and also invented enhancements for several instruments, most famously a dual keyboard piano. Those instruments and his compositions were championed by music luminaries in the early 20th century. His Prelude, which exists in versions for violin and piano as well as cello and piano, was dedicated to the great Catalan cellist Pablo Casals and published in 1911. It is richly Romantic in style, with suggestions of his Hungarian and Jewish heritage in the dark double-stopping and his love for Bach in its patterned figuration.