In 1938 Theodor Adorno wrote a critical essay, notoriously charging that "If Sibelius is good, this invalidates the standards of musical quality that have persisted from Bach to Schoenberg: the richness of inter-connectedness, articulation, unity in diversity, the 'multi-faceted' in 'the one'." Adorno sent his essay to Virgil Thomson, then music critic of the "New York Herald Tribune", who was also critical of Sibelius; Thomson, while agreeing with the essay's sentiment, declared to Adorno that "the tone of it more apt to create antagonism toward [Adorno than toward Sibelius". Later, the composer, theorist and conductor René Leibowitz went so far as to describe Sibelius as "the worst composer in the world" in the title of a 1955 pamphlet.