 He had his first specialized instrument built for him in 1930—the Adapted Viola, a viola with a cello's neck fitted on it.Most of Partch's works used the instruments he created exclusively.Some works made use of unaltered standard instruments such as clarinet or cello; "Revelation in the Courtyard Park" (1960) used an unaltered small wind band, and "Yankee Doodle Fantasy" (1944) used unaltered oboe and flute.