Input (grade 6): While not a child prodigy, he began piano at secondary school, before going on to study at the St. Petersburg Conservatory in Leningrad from 1972 to 1977.
Output (grade 7): He was not a child prodigy, but he began to play the piano at secondary school, before going on to study at the St. Petersburg Conservatory in Leningrad from 1972 to 1977.