Ok, basic chords consist of thirds stacked on each other. There are two types of thirds, right. Which gives 4 possibillities, you said... I'm tempted to say it's six.

What if the intervals between the thirds are:

Major third, major third

Minor third, minor third

A major/minor third between both the root/third and the third/fifth. What are we dealing with then?

- EDIT: Sorry, Azrael. How stupid am I? I didn't notice that you actually included those as alternatives! It's diminished and augmented, I see now. Thank you. I've really got to open my eyes.

[Edited by jleraan on 02-20-2004 at 09:50 AM]