Grand traitéd’instrumentationetd’orchestration modernes, abbreviated in English as the Treatise on Instrumentation (sometimes Treatise on Orchestration)
instruments in his 1904 revision of Hector Berlioz's Grand Traitéd'instrumentationetd'orchestration modernes, and (like Varèse) specifies the instrument
pour la clarinet et le cor. Hector Berlioz (1844), revised in 1905 by Richard Strauss: Grand traitéd’instrumentationetd’orchestration modernes (Treatise