ideas were appreciated, influenced and favoured by composers Maurice Ravel, Albert Roussel, Jacques Ibert, Igor Stravinsky, musicologists and critics Émile Vuillermoz, Boris de Schloezer, Alexis Roland-Manuel, Arthur Hoérée, conductors André Caplet, Gaston Poulet, Vladimir Golschmann. Though Arthur Honegger and Darius Milhaud tried to persuade him to join Les Six, he declined, stating a need for creative independence. Nevertheless, he was one of the earliest and leading representatives of neoclassicism, along with Stravinsky, Les Six, Sergei Prokofiev, Paul Hindemith, Alfredo Casella. He was also one of the most respected members of the international music group École de Paris, along with Bohuslav Martinů, Tibor Harsányi, Alexander Tcherepnin, Marcel Mihalovici, Conrad Beck. From the 1920s Tansman's rise to fame was meteoric, with works conducted and championed by such world-famous baton masters as Arturo Toscanini, Tullio Serafin, Willem Mengelberg, Walter Damrosch, Sir Henry Wood, Serge Koussevitzky, Pierre Monteux, Otto Klemperer, Rhené-Baton, Désiré-Émile Inghelbrecht, Walther Straram, Hermann Abendroth, Leopold Stokowski, Erich Kleiber, Sir Adrian Boult, Dimitri Mitropoulos, Frederick Stock, Eugene Ormandy. Tansman follows Paderewski as the second Polish composer whose theatre piece – ballet Sextuor – was staged by the Metropolitan Opera (1927). As early as the first half of the 1920s, Belgian music critic and composer Georges Systermans wrote, that Tansman's musical personality "combines poetic genius with Latin culture". Tansman's works started to be frequently performed in programs with pieces by Maurice Ravel, Igor Stravinsky and Gian Francesco Malipiero on the one hand, and Wolfgang Amadeus Mozart, Carl Maria von Weber and Nikolai Rimsky-Korsakov on the other. Each time he visited Germany, he was invited to Arnold Schönberg's home, who at that time lectured in Berlin. In 1927 Nicholas Slonimsky called Tansman a "musical plenipotentiary of Poland in the Western World". From the mid-1920s, and into the decades that followed, Tansman's works were performed in some of the best concert halls in the world, such as Salle Gaveau, Théâtre Royal de la Monnaie, Carnegie Hall, Opéra National de Paris, New York Philharmonic, Théâtre des Champs-Élysées, Salle Pleyel, Boston Symphony Hall, Théâtre Mogador, Opéra National de Lyon, Château Royal de Laeken, Théâtre de la Ville, Palais-Royal, Berlin Staatsoper, Royal Albert Hall, Metropolitan Opera, Severance Hall, Palais des Beaux-Arts, Royal Concertgebouw, Constitution Hall, Cologne Opera, Tokyo Hibiya Public Hall, Berlin Philharmonic, Oslo National Theatre, Wigmore Hall, Teatro La Fenice, American Academy of Music, De Doelen, Teatro Nacional de São Carlos, Opéra de Nice, Orchestra Hall, Théâtre