A Quick Start Guide to Altissimo
Many saxophonists beginning their journey into the altissimo range start with a fingering chart. The problem with this first step is that fingerings are the least important element of the altissimo range. In fact, as you develop your altissimo you may well find you change the fingerings to fit the musical phrase you are playing. It is necessary to develop three key areas before downloading that fingering chart:

Embouchure, Voicing and Support.