Prolific scorer from Down Under in auction?

• Author of more than 600 compositions
• Subject of a Peter Shaffer play
• ''The Clemency of Titus'' composer
• "Eine kleine Nachtmusik" composer
• "Jupiter" composer
• "Magic Flute" composer
• "The Marriage of Figaro" composer
• "Idomeneo" composer
• According to legend, at age 2 he identified a pig's squeal as G sharp

Wikipedia Word definitions in Wikipedia
Mozart was an Irish champion Thoroughbred racehorse and sire . He was named European Champion Sprinter as a three-year-old in 2001, when his victories included two Group One races in England, the July Cup and the Nunthorpe Stakes . He was retired to stud ...