90 minutes. The performance of the saxophone depends on the condition of the instrument and the player's method. A normal concert lasting 90 minutes is not burdensome at all. The Saxophone is an instrument invented in 1840 by the Belgian Adolf Sax (1814-1894). He combined the mouthpiece of the bass clarinet with the body of the Orpheus Clyde horn and modified it. Improvements and eventually named this new instrument after himself.