What's the highest you can go on an alto saxophone?

Question:

What's the highest you can go on an alto saxophone?

i mean, HOW high can the alto sax go. is it 3 or 4 octives?

Best Answer - Chosen by Asker: If only she paid more attention. The lowest note is a Bb/A# that is below middle C on alto sax. Some models of baritone sax can go to an A with the special "low a" key. The highest a saxophone can go naturally (with the keys as configured) is either F or F#/Gb just above 3 ledger lines above the staff. The reason for two notes is that some saxophones have a high F# key, and some sopranos and a few altos are even coming with a high G key. Then there is altissimo. With false fingerings, use of harmonics, etc, a lot of advanced players can add another octave above that. There are even some people that can add more above that. With very bad technique (biting) and a really wide open mouthpiece, I can achieve a B 4 octaves above the top of the treble clef. It's a nasty squeal, but it is that note.
So, short answer to your question. Natural range of the saxophone, 2.5 octaves. Advanced players can add another octave to that to make it a 3.5 octave instrument. Source(s):
18 years playing saxophone The lowest note an alto sax can play is a "written" (not concert pitch) A3 -two ledger lines below the staff, the highest is the D8 - or the screamin' high one shown in the fingering chart on the link below - that would be 4+ octaves- however those are also your advanced notes and far less used ones- for practical use the notes most seen are in the 3 octaves from A3 to A6. Hope the fingering chart helps too!
Best of luck Basically, you can go all the way down to Ab/G#, but I think you can go down a little lower. The highest you can go is up to a high F by pressing the 3 keys near your left hand.