The Music course at Cambridge is designed to introduce you not just to a range of music, but to a wide variety of ways of thinking about and understanding music.
At first the focus is on the skills you need for university-level music studies, giving you a solid grounding in the techniques and history of the Western musical tradition, as well as an understanding of the many roles music plays in today's world. As you progress through your studies, you have increasing freedom to take specialised courses in different kinds of music, or approaches to it.
Though the course has a strong academic component, you can choose to study performance and composition in all three years, and you can choose to spend most of your final year working with individual staff members on your own analytical, historical or compositional projects.
What makes the Cambridge system so special is the complementary relationship between Faculty and College teaching. Faculty teaching takes the form of lectures and seminars. Lectures provide you with the basis upon which you can build your own self-directed study and are for all students from all colleges. Seminars are less formal; they rely heavily on student participation and you will be required to contribute to discussions.
Supervisions are organised by colleges and students often regard them as the most rewarding and beneficial part of the Cambridge experience. They typically involve just two or three students, take place weekly, and last around an hour. You normally prepare an essay or another piece of work for a supervision, but you are not formally assessed on it: this means that you can try things out, take risks, explore new approaches and clarify aspects of the topic about which you are unsure.
Have a look at the Music Faculty Prospectus, which contains a 'Week in the life of a first-year music student'.