The Rousseau ER50 Classic Alto Saxophone Mouthpiece is designed to give increased projection and freedom. The free blowing nature of this mouthpiece allows the player to explore a diverse tonal palette with increased nuance. The ER50 Classic allows for more freedom and expansion on the lower range of the instrument. It offers enhanced warmth of the sound while still retaining the classic singing saxophone sound that Dr. Rousseau is famous for. The ER50 Classic is perfect for any saxophone soloist looking to take the stage with a large ensemble.