How can I learn how to do vibrato on the alto saxophone?

To learn how to do vibrato on the Alto Saxophone, you can start by practicing with a consistent airflow and using your diaphragm to create a slight fluctuation in pitch. Experiment with different speeds and depths of vibrato until you find a style that suits your playing. It may also be helpful to listen to recordings of professional saxophonists to hear how they use vibrato in their playing. Regular practice and patience are key to mastering this technique.