Interval and Major Scale Theory's intent is to go back to the fundamentals of music. This theory book delves into the basic building blocks of music and lays a good foundation for furthering your music knowledge base. This volume covers intervals, explains consonance and dissonance, elaborates on essential musical vocabulary, understanding the major scale step progression, in-depth break down of the Cycle of 5ths and the Cycle of 4ths, etc. The main focal point in Bryan DeLauney's books is to make learning music enjoyable and fun, rather than boring and confusing. Each chapter has tables, figures, and diagrams to assist in the learning process. There are many reiterations and ideas that are brought back into following chapters to assist in the harder areas, and memorization tools and ideas to help you along the way.