E-flat clarinet
The work is scored for an orchestra comprising two flutes (doubling alto flute), piccolo (doubling flute), two oboes, cor anglais, two clarinets (doubling E-flat clarinet and bass clarinet), bass clarinet, two bassoons, contrabassoon, four horns, four Wagner tubas, three trumpets, three trombones, tuba, timpani, four percussionists, harp, piano (doubling celesta), and strings.