Music has always formed a core component of the lives and education of Rathdown students, and in 2005 the School constructed a state-of-the-art Music Centre to more adequately cater to this artistic inclination.

The Centre, located on the ground floor of modern boarding facility Innismore, includes soundproof practice rooms, an auditorium and a computer lab. The building is used to host classes, private lessons, performances and other events.

The quality of the facilities is unrivalled, especially at the secondary school level, and the Centre serves as a wonderful forum through which Rathdown can continue its comprehensive and progressive musical programs.