Originally Posted by: pentaking 1hey guys;I am just getting into writing my own material,and have figured out the formulae for major keys (ie maj,maj,min,min,maj,dim) but cannot get the right formulae for minor keys----can anyone tell me?

umm...That's not the formula for Major keys...

Major is

Maj Min Min Maj Maj Min Dim

Minor is

Min Dim Maj Min Min Maj Maj

However, if you're writing classical, V is always major (unless you're Wagner or somebody) So the Minor chords would be Min Dim Maj Min Maj Maj Maj.

Also, the IV is occasionally major if you're using the melodic minor, which you will be in classical. Common Classical progressions are usually centered around I-V-I cadences.