(b Leipzig, 13 Aug 1655; d Nuremberg, 20 April 1707). German woodwind instrument maker. He established a shop in Nuremberg (1680) and realizing the advantages of new-style imported French instruments, abandoned one-piece Renaissance construction in favour of three pieces with tuning-joints and a change in the bore. His surviving instruments include, besides recorders, members of the oboe, shawm and bassoon families; an early clarinet with a bell and three keys supports Doppelmayr's statement (1730) that Denner invented the instrument. He is also credited with the introduction of the Baroque racket. The surviving recorders, flutes, oboes and clarinets of Johann's son Jacob (1681-1735) show a move towards late Baroque elegance.




