Baroque Flute Reproduction of G.A. Rottenburgh At pitch A=415+, 9.15 x 9 embouchure, this Baroque flute covers a large spectrum of flute repertoire including music by Vivaldi, Händel, and Bach. Its a copy of an instrument made by G.A. Rottenburgh in 18th Century (1709-1790, Brussels). Boxwood with adjustable foot joint and Silver key