Overview of the Circle of 5ths – Lesson 37 Brian Haner Sr. In this lesson we introduce you to the “Circle of Fifths” and explain its functions and importance. Syn’s Tips This is a lot to take in I know, but absorb as much of it as you can now. This overview will make a lot more sense when we explore what key pieces of music are in or what we call “Key Signatures”. There is much more that we will get into later but for now, try and memorize this as much as you can to give you a solid learning foundation. Do any of you have any tips or tricks for beginners to better understand the circle of fifths and fourths? If so, we’d love to check em out, just upload videos of yourselves showing us what ya got in the "Lesson Comments" section below!