How many operas were written by the writer of the opera in which Erik Ole Bye debuted?
Erik Ole Bye:  He made his professional opera debut in 1913 at the National Theatre, Oslo as Don Basilio in Gioachino Rossini's "The Barber of Seville". Gioachino Rossini: Gioachino Antonio Rossini (] ; 29 February 179213 November 1868) was an Italian composer who wrote 39 operas, as well as some sacred music, songs, chamber music and piano pieces.
39