Mixed Messages has a duration of roughly 11 minutes and is composed in one continuous movement [REF].
The work is scored for an orchestra comprising two flutes, piccolo, two oboes, cor anglais, two clarinets, bass clarinet, two bassoons, contrabassoon, four horns, three trumpets, two tenor trombones, bass trombone, tuba, timpani, four percussionists, harp, piano (doubling celesta), and strings [REF].