Air Pitch is a technique whereby air is blown through the saxophone. Pitch and timbre are affected by the fingerings, the position of the mouth, and the pressure of the air. Since the air is inherent in the timbre of the sound a purely pitch-based result is impossible – in other words, there will always be an airy timbre to the sound. However, by changing positions of the mouth (blowing from the right, left, above, below, straight on, enclosing the neckpiece around the lips, etc.) will slightly change the resultant timbre. Air pressure affects the distinction of balance between air and pitched sound.
Discussion on General Air Pitch Technique - Video
Instrument Specific Specifications
Player Etudes - SATB