Someone who systematically studies music and musical style, particularly in the realm of historical research.

Today, the scope of musicology for a musicologist may be summarized as covering the study of the history and phenomena of music, including (1) form and notation, (2) biography, (3) the development of musical instruments, (4) music theory (harmony, melody, modes, etc.), and (5) aesthetics, acoustics, and physiology of the voice, ear, and hand.