I just updated my Circle Of Fifths tutorial with videos & scores:

http://www.guitartricks.com/tutorial.php?input=835

It's fairly complex material, but I tried to make it understandable, useful & fun! I expanded it from 5 lessons of text to 10 lessons with vids, scores, examples.

Important note for future reference, this tutorial has lessons that explicitly show, play, identify & score the sharps & flats of each and every musical key signature, one at a time.

Have fun & be informed.