Saxophone technique refers to the physical means of playing the saxophone. It includes how to hold the instrument, how the embouchure is formed and the airstream produced, tone production, hands and fingering positions, and a number of other aspects. Instrumental technique and corresponding pedagogy is a topic of much interest to musicians and teachers and therefore has been subjected to personal opinions and differences in approach. Over the course of the saxophone's performance history, notable saxophonists have contributed much to the literature on saxophone technique.