Lip slurs are a technique used by brass and woodwind players to smoothly transition between notes without articulating each one. This is achieved by changing the pitch while maintaining a steady airflow, allowing for a fluid sound. Lip slurs help musicians develop their embouchure, which is the way they position their lips and facial muscles when playing. Practicing lip slurs can improve a player's flexibility and control over their instrument. They are often incorporated into warm-up routines and can be applied to various scales and exercises. Musicians like trumpet and trombone players frequently use lip slurs to enhance their performance skills.