Soprano and Tenor are in B-flat, alto and baritone in E-Flat.
Aug 16, 2009 Rating
Easy by: Cosmo USA
Soprano b flat Alto e flat Tenor b flat Baritone e flat Bass Baritone b flat
Sep 06, 2009 Rating
Here's the trick by: Charlotte
You can memorize the key of a sax, (like: alto is Eb, Tenor is Bb, etc.) but here is the trick to figuring it out yourself.
Find the middle C key on a piano, and match it to your sax. Play every note on your sax until you find the same pitch as the piano is playing. THAT is the key of your saxophone.
On my alto, for example, when I play the alto's Eb, it sounds like a C on a piano. :)