Book excerpt: Drawing on the work of leading experts from around the globe, Musicology and Sister Disciplines provides the definitive, authoritative statement on the scope of musicology today and its relationship to other fields of academic endeavour, including philosophy and aesthetics, literary studies, art history, mathematics, computer science, historiography, and sociology. These groundbreaking papers represent the outcome of a major musicological conference in 1997, and include contributions from the philosopher Bernard Williams and world-famous mathematician Roger Penrose.