I am currently reading music theory for dummies and i just got down with the interval section, i skimmed ahead and read online and it apeared that it didn't cover modes (not totally sure) and didn't give all that many scales (read online) After this I was thinking about reading complete idoits guides to dummies as that has an ear training and im sure it covers modes, or i was going to use the MI ear training book as for dummies mostly left that out and then also buy a more advanced theory book. what do you guys feel I should follow up with, if it is a more advanced theory book please give specific books if you know if any. thanks