Why do Mozart's musical works in major and minor keys sound so different from each other, and what creative insights might these differences reveal? InMozart: A Tale of Two Keys, Tim Carter explores the composer's instrumentation, tuning, and temperament techniques, offering new insights into his symphonies and sonatas.How can we best understand the rules of Mozart's musical games? His first symphony, written in E flat major when he was just nine years old, sits at the opposite end of the tonal spectrum of his final concerto in A major. Through his diligent attention to -- and the creative reconsideration of -- tuning and temperament, instrumentation, musical intertextualities, and key-specific idioms, Mozart demonstrated the breadth of his musical ingenuity. By incorporating distinctive musical techniques within and across keys, the composer pushed the boundaries of meaning in late eighteenth-century music in ways that still resonate today.InMozart: A Tale of Two Keys, Tim Carter explores this unique approach to musical creativity, uncovering new insights that reveal the inventiveness and humor inherent in Mozart's works. With particular emphasis on the intention behind his technique, Carter argues that the composer used sound in unexpected, playful, and striking ways, revealing the intense joy and limitless possibility inherent in the art and craft of making music.List of Music Examples, Figures, and TablesAcknowledgmentsEditorial (etc.) Principles1: Theme and Variations2: The Meaning of Keys: Eighteenth-Century Views3: E-flat Major: The Flat Seventh and Other Space-Opening Motions4: A Major: ^5 or ^3 and Other Problems5: Rosina and Her Sisters6: A Major Seduction7: Farewell to Nancy Storace (in Three Flats)8: Instrumental ComplicationsWorks CitedIndex of Mozart's WorksGeneral IndexTim Carteris a musicologist who has taught at the Universities of Leicester and Lancaster, Royal Holloway and Bedford New College, and the Universl³*