well said, but as I stated earlier, music theory is mainly for music notation, focusing on the proper knowledge of chord progressions, and intervals in respect to how it looks on a staff. I had particular trouble during my semester of music theory(don't worry I plan on taking the full music theory course, but going to Napa Valley College, whereas I took the first semester at Santa Rosa Junior College, so I will need to realise that there will be different approaches to the subject)
All in all, music theory is a fine subject to study, and so is ear training. Both kind of go hand and hand.

