sentences:  As of 1891 Dvořák had written 11 string quartets, six of which had been premiered, and these were available as part of the repertory of the Quartet on tour, as were the two quartets of Smetana.From 1892 to 1895, Dvořák was the director of the National Conservatory of Music in New York City.He began at a then-staggering $15,000 annual salary.