But, with the Alfred's book, you get a structured, sequential way of learning theory that won't leave you confused when you try to move on to other concepts or ask questions. For instance, once you've grasped intervals, you'll be prepared to get into scales, and then onto chords. Much more useful and efficient than digging through random youtube vids. Watch them vids to reinforce the shit once you've learned it I HIGHLY recommend that book you bought for starting out. Another great resource is musictheory.net LOTS of exercises and very well laid out for daily learning and practice. My theory professor suggested we use that site to practice.Yeah lol. Everything i found in the book i could have found online, but f it