This video details how to use the Circle of Fifths to calculate key signatures for major keys. It's important that you know how to create the circle before watching this video - please watch my other video on "how to create the circle of fifths" before this one if you need to. If you'd like to extend your knowledge of the circle and use to it create major scales have a look at this video: www.youtube.com/watch?v=itXflZ3DqOo Please note that this video is virtually identicial (bar a few small changes) to my previous video detailing how to use the circle of fifths for major keys. This video, however, is in HD and has much better sound quality.