The book traces the Beatles' development chronologically, marking the band's involvement with world events such as the Vietnam War, strides in overcoming racial segregation, gender stereotyping, student demonstrations, and the generation gap. It delves deeply into their body of work, introducing the concepts of musical form, instrumentation, harmonic structure, melodic patterns, and rhythmic devices in a way that is accessible to musicians and non-musicians alike. Close readings of specific songs highlight the tensions between imagination and mechanics, songwriting and technology, and through the book's musical examples, listeners will learn how to develop strategies for creating their own rich interpretations of the potential meanings behind their favorite songs. Videos hosted on the book's companion website offer full definitions and performance demonstrations of all musical concepts discussed in the text, and interactive listening guides illustrate track details in real-time listening.

The unique multimedia approach of What Goes On reveals just how great this music was in its own time, and why it remains important today as a body of singular achievement.