Franz Xaver Mozart was born just four months before the death of his father, Wolfgang Amadeus. Although a pianist of similarly precocious talent, he wrote only two piano concertos. Coupled with Clementi's only surviving essay in the genre, they make a sparkling addition to Hyperion's Classical Piano Concerto series. Howard Shelley, the series' able guide, leads the Sinfonieorchester St. Gallen from the keyboard.