I'm just wondering if you understand what everyone is trying to say. A piano is in what they call "Concert pitch." So is the flute, as well as most of the bass cleff instrument (and percussion.) Other instruments, like the saxophone, are pitched somewhat higher or lower than "Concert pitch." That means when you play a "B" on the soprano, it sounds like an "A" on the piano. That does not mean that you are playing an "A" on the soprano. This means that music for the Soprano saxophone must be written one whole step higher than "Concert Pitch" so that when you play it as written, it will sound right along with the piano. If you are playing off a piano score, and want it to sound right with the piano, you will have to play each note one step higher than it is written. (When a "C" is written, you would play a "D".) Of course, if you're playing without the piano, it doesn't matter that much, what you are playing will just sound a little lower than you're used to. Finally, believe your fingering chart. Finger a "B", and play it, and believe that it is a "B", even though it may sound like an "A". (On an alto, a "B" will sound like a "D"). Good luck. (It may help to take lessons from a person who knows the saxophone, also.)

how do you know it is an A remember the soprano is in B flat and that means it is one tone lower than a piano so that a concert A is played as a B and concert C as a D and so on