Richard Wagner's opera Das Rheingold is a milestone in the composer's output and in the history of music in general. It marked Wagner's return to operatic composition after a hiatus of five years, and signified his definitive break with earlier operatic conventions. It also represents a reconsideration of the whole question of dramatic-musical form, and the role of tonality in articulating this form. Warren Darcy traces here the genesis of Das Rheingold...