Question: Adolf Čech led performances of operas by a composer who was active during what period?
Sentence (from "Pyotr Ilyich Tchaikovsky"): Pyotr Ilyich Tchaikovsky ( ; Russian: Пётр Ильи́ч Чайко́вский ; 25 April/7 May 1840 – 25 October/6 November 1893), often anglicized as Peter Ilich Tchaikovsky, was a Russian composer of the romantic period, some of whose works are among the most popular music in the classical repertoire.
Relevant evidence: Yes