Too Flat/ too sharp

[delboy1961]

I have bought myself a tuner which will transpose and it appears that on some notes I am too Flat and on others too sharp (to my suprise some were actually spot on).It is apparent I do not use my diaphram enough s when I push out the stomach muscles I get nearer.
Is this the answer that I need to strenthen my stomach muscles (a spare tyre has appeared !!) or is it embouchure or maybe my cheapo sax is not airtight.

 

[Pete Thomas]

It's OK and normal to be a few cents (percent of a semitone) flat or sharp, especially when NOT playing along with a keyboard.

Also have alokk here:

http://www.shwoodwind.co.uk/HandyHints/Tuner.htm

 

[therudest]

Thx a lot Pete, as always, u saved me from falling into a deep "tuner addicted" hole =D