i-Diatnonic is simple utility application to know the Diatonic code of specified key.
■You tube
http://www.youtube.com/watch?v=HuSNU6FwSe0
For use:
・When yould like to change the key of score.
・When you dont know what code to play in the key.
・When your bands vocalist wish you to down the key.
You can change a key, and up / down half tone easily.
And of course, You can see the minor keys diatonic and 7th keys diatonic too.
Thanks.