Original: Salonen 's tenure with the orchestra first began with a residency at the 1992 Salzburg Festival in concert performances and as the pit orchestra in a production of the opera Saint-François d'Assise by Olivier Messiaen ; it was the first time an American orchestra was given that opportunity .
Simplified: In 1992 he took the orchestra to the Salzburg Festival where they gave concert performances and well as playing in the opera house for the opera Saint-François d'Assise by Olivier Messiaen .