Originally Posted by: RickBlackerIn fact, go here...
http://www.guitartricks.com/course.php?input=2

Good call, Rick. Thanks. :)

I should have pointed this one out myself. The numbers are scale degrees that get built into chord tones. The intervals tutorial will explain that in more depth. Then you can get to my music theory tutorial here:

http://www.guitartricks.com/tutorial.php?input=495

And the third lesson in that tutorial will explain how chords get built from scales. I have recently filmed footage for that tutorial, but will not get around to editing-rendering vids for a little while. But it's in the work queue!

Further, this tutorial is entirely about sus chords:

http://www.guitartricks.com/tutorial.php?input=199

Best of success with it!