Leonard Edward Slatkin (born September 1, 1944) is an American conductor and composer.

Slatkin was born in Los Angeles to a musical family that came from areas of the Russian Empire now in Ukraine. His father Felix Slatkin was the violinist, conductor and founder of the Hollywood String Quartet, and his mother Eleanor Aller was cellist with the quartet. His brother Frederick, now a cellist, traced the family's original name as Zlotkin, and adopted that form of the family surname for himself professionally. Frederick Zlotkin has spoken of the family lineage as follows:

"The Zlotkin/Slatkin lineage is Russian-Jewish. The first Zlotkin arrival to the US was Felix's father, grandpa Chaim Peretz Zlotkin, who came to settle with relatives in St. Louis in 1904; he (or the clerk at Ellis Island) changed the name. He probably came from the town of Mogilev [now Mohyliv-Podilskyi], from a shtetl (the Russians forced most Jews to live in villages outside of the major cities)...The Altschuler [Aller] side of the family is really rife with musicians. Grisha's uncle, Modest Altschuler, was a cellist (making me 4th generation) and he had quite a career. Among other things, he did the St. Petersburg premiere of Tchaikovsky's Souvenir de Florence Sextet. When he came to America he formed the Russian Symphony Orchestra (early 1900's)."

Lorin Varencove Maazel (born March 6, 1930) is an American conductor, violinist and composer.

Maazel was born to Jewish-American parents of Russian origin in Neuilly-sur-Seine, France and brought up in the United States, primarily at his parents' home in Pittsburgh's Oakland neighborhood. His father, Lincoln Maazel (1903–2009), was a singer, teacher of voice and piano, and an actor (he co-starred in George A. Romero's 1977 horror movie Martin); and his mother, Marion "Marie" Shulman Maazel (1894–1992), founded the Pittsburgh Youth Symphony Orchestra. His grandfather Isaac was a violinist in the Metropolitan Opera Orchestra for twenty years. Both Lincoln and Marie gave interviews for the Oral History Collection at the University of Pittsburgh, Lincoln’s in 1994, and Marie’s in 1974. These can be heard online.

Lorin Maazel was a child prodigy, taking his first conducting lesson at age seven with Vladimir Bakaleinikov and making his debut at age eight. At the age of eleven, he guest conducted the NBC Symphony Orchestra on the radio. At twelve he toured America to conduct major orchestras. He made his violin debut at the age of fifteen. He later studied at the University of Pittsburgh.

Charles Édouard Dutoit, (French pronunciation: [ʃaʁl e.dwaːʁ dy.twa]) OC GOQ (born 7 October 1936) is a Swiss conductor, particularly noted for his interpretations of French and Russian 20th century music. He has made influential modern recordings of Hector Berlioz's Roméo et Juliette and Maurice Ravel's ballets Daphnis et Chloé and Ma mère l'oye. He currently serves as the Principal Conductor and Artistic Director of London's Royal Philharmonic Orchestra.

Dutoit was born in Lausanne, Switzerland, studied there and graduated from the Geneva Conservatory where he won first prize in conducting, then he went to the Music Academy in Siena by the invitation of Alceo Galliera. In his younger days, he frequently attended Ernest Ansermet's rehearsals and had a personal acquaintance with him. He also worked with Herbert von Karajan at Lucerne as a member of the festival youth orchestra and studied with Charles Munch at Tanglewood. Dutoit began his professional music career in 1957 as a viola player with various orchestras across Europe and South America. In January 1959, he made his debut as a professional conductor with an orchestra of Radio Lausanne and Martha Argerich. From 1959 he was a guest conductor of the Orchestre de la Suisse Romande and the Lausanne Chamber Orchestra. After this, he was the conductor for Radio Zurich until 1967, when he took over the Bern Symphony Orchestra from Paul Kletzki, where he stayed for eleven years.