Original sentence: From 1966 he tought at the Leningrad Conservatory first as a teacher then from 1973 as a professor
Edited sentence: From 1966 he taught at the Leningrad Conservatory first as a teacher then from 1973 as a professor.Gusev also created the so-called Harlequinade pas de deux, set to music taken from Petipa's Les Millions d’Arlequin.Gusev also staged a new one-act version of the 1900 Petipa/Drigo ballet Les Millions d’Arlequin under the title Harlequinade for the Ballet of the Maly Theatre.Gusev's revision of the choreography of the scene Le Jardin animé from Le Corsaire is included in several productions of the ballet, notably American Ballet Theatre and the Kirov/Mariinsky Ballet's productions, and is considered the standard choregraphic text.In 1947 Gusev choreographed a new version of the Variation de Gamzatti from the 1877 Petipa/Minkus ballet La Bayadère for Natalia Dudinskaya.In 1955 he presented a new version of Le Corsaire with the ballet historian Yuri Slonimsky for the Ballet of the Maly/Mikhailovsky Theatre.In the 1940s he created the so-called The Talisman pas de deux fashioned from music taken from the 1889 Petipa/Drigo ballet Le Talisman.Pyotr Gusev also created several divertissements fashioned from the old ballets of Petipa.Pyotr Gusev revised many of the ballets of Marius Petipa and Lev Ivanov throughout his career, though he is often not credited for his choregraphic revisions.Today Gusev's choreography is the standard version performed by ballet companies throughout the world.Today Gusev's production of Le Corsaire is included in the repertory of the Kirov/Mariinsky Ballet.Today Gusev's staging is performed by several russian ballet companies