Developing literacy with the tonal language forms a key part of a rounded education for performers, composers and listeners of all kinds. An understanding of how written symbols relate to the elements of music, and having the skills to interpret and translate them into sounds, empowers us to communicate and experience music in a meaningful way.
Without knowledge of notation it is impossible for classical musicians to access their repertoire with ease or to rehearse together; and this repertoire could not be heard at all had composers not been able to write it down. So, music theory is a very practical subject that is completely entwined with performance and composition.
Theory of Music classes start at Grade 1 and culminate at Grade 8. Thereafter the learner may engage in