Trifonov the young conqueror of the keyboard revealed himself with a breathless account of Schumann’s joyous Toccata, a notorious finger-twister.

Schumann’s Toccata is supposed to be among the hardest pieces in the repertory; Argerich, who particularly adores Schumann, used it for years as a warm-up.

But the first piece played on the piano was not a toccata and fugue or a sonata.