Once Tchaikovsky finished scoring the "Allegro brillante" in October 1893, he asked Taneyev to look it over. Taneyev, on whom Tchaikovsky relied for technical pianistic advice, found the solo part lacking in virtuosity. Tchaikovsky had told Siloti that if Taneyev shared his low opinion of the concerto, he would destroy it. The composer did not carry out this threat, however. Tchaikovsky's brother Modest assured Siloti that while Tchaikovsky in no way questioned Taneyev’s verdict, he also had promised the concerto to Diémer and wanted to show the score to him. In fact, on what would be his final visit to Moscow in October 1893, Tchaikovsky showed the concerto once again to Taneyev and still intended to show the work to Diémer.