Question: The composer of Allegro de concert was originally from which country?
Sentence (from "Piano Concerto No. 3 (Tchaikovsky)"): The Symphony No. 6 "Pathétique" was the last of Tchaikovsky's compositions to be performed in his lifetime, but the "Allegro Brillante", now known as the Piano Concerto No. 3, was his last completed composition.
Relevant evidence: No