E-flat clarinet
"Liquid Interface" is scored for electronica and orchestra, comprising three flutes (all doubling piccolo), three oboes (3rd doubling English horn), three clarinets (3rd doubling bass clarinet and E-flat clarinet), three bassoons (3rd doubling contrabassoon), four French horns, three trumpets, two tenor trombones, bass trombone, tuba, three percussionists, harp, piano, and strings.