Mozart at the Spinet attributed to Thaddeus Helbing, 1766-67. Wolfgang Amadeus Mozart (January 27, 1756 - December 5, 1791) was a child prodigy and Austrian composer of the Classical era. He composed over 600 works, many acknowledged as pinnacles of symphonic, concertante, chamber, operatic, and choral music. Visit our Fine Art America shop for puzzles, masks, framed prints, canvas prints, posters, shower curtains, mugs, phone cases, t-shirts, tote bags.