 He also played in the New York Philharmonic under the direction of Leonard Bernstein, Zimbler Sinfonietta in Boston, and was concertmaster with the Esterhazy Chamber Orchestra and the Minnesota Orchestra.He was also guest concertmaster with the Pittsburgh Symphony and played at the Hollywood Bowl, and he toured worldwide on numerous occasions with the Cleveland Orchestra under the direction of George Szell, Lorin Maazel, Erich Leinsdorf and Stanislaus Skrowaczewski.Ceci performed under the direction of every major conductor including Bruno Walter, Eugene Ormandy, Dimitris Mitropoulos, Igor Stravinsky, Jean Martinon, Zuben Mehta, William Steinberg, Sir John Barbirolli, Karl Boehm, Daniel Barenboim, Paul Hindemith and Leopold Stokowski to name a few.