text: It is likely that in labeling the taxi horns as A, B, C, and D with circles, he was referring to the four horns, and not the notes that they played.A major revision of the work by composer and arranger F.Campbell-Watson simplified the instrumentation by reducing the saxophones to only three instruments: alto, tenor and baritone; the soprano and alto saxophone doublings were eliminated to avoid changing instruments.This became the standard performing edition until 2000, when Gershwin specialist Jack Gibbons made his own restoration of the original orchestration of An American in Paris, working directly from Gershwin's original manuscript, including the restoration of Gershwin's soprano saxophone parts removed in Campbell-Watson's revision.Gibbons' restored orchestration of An American in Paris was performed at London's Queen Elizabeth Hall on July 9, 2000, by the City of Oxford Orchestra conducted by Levon Parikian.William Daly arranged the score for piano solo; this was published by New World Music in 1929.Preservation status On September 22, 2013, it was announced that a musicological critical edition of the full orchestral score would be eventually released.The Gershwin family, working in conjunction with the Library of Congress and the University of Michigan, were working to make scores available to the public that represent Gershwin's true intent.It was unknown whether the critical score would include the four minutes of material Gershwin later deleted from the work (such as the restatement of the blues theme after the faster 12 bar blues section), or if the score would document changes in the orchestration during Gershwin's composition process.The score to An American in Paris was scheduled to be issued first in a series of scores to be released.The entire project was expected to take 30 to 40 years to complete, but An American in Paris was planned to be an early volume in the series.