With your left hand (upper) press the first three fingers. For a high C add the octave key with your left hand thumb.
the note C is middle finger down (left hand)when you are holding it
C
a really really high note
b flat
As on any instrument, C flat is one half step below C natural, and sounds the same as B. There are good technical reasons why a note might be notated as a C flat, but just play B.
Basically, you start on any note and go up a half step. This works on all saxophones. Go from C to #C to D to #D... ect.
The best resource for learning to play the alto saxophone note chart effectively is a comprehensive saxophone method book that includes detailed explanations and exercises for mastering the notes on the instrument.
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how do you play a c on the recorder
middle finger on top four keys
The written low Bb of an alto sax sounds a C# (or Db) in the middle of the bass clef, also know as C#3. The frequency of the note is 138.59 Hz, assuming the note is played in tune with A4 = 440Hz..
It's completely open.