While these works and others like them that would follow were accepted by the listening public at large, detractors accused Copland of pandering to the masses. Music critic Paul Rosenfeld, for one, warned in 1939 that Copland was "standing in the fork in the highroad, the two branches of which lead respectively to popular and artistic success." Even some of the composer's friends, such as composer Arthur Berger, were confused about Copland's simpler style. One, composer David Diamond, went so far as to lecture Copland: "By having sold out to the mongrel commercialists half-way already, the danger is going to be wider for you, and I beg you dear Aaron, don't sell out yet." Copland's response was that his writing as he did and in as many genres was his response to how the Depression had affected society, as well as to new media and the audiences made available by these new media. As he himself phrased it, "The composer who is frightened of losing his artistic integrity through contact with a mass audience is no longer aware of the meaning of the word art."