While celebrating its 75th anniversary this fall, New York City Ballet is performing 18 ballets by its founding choreographer, George Balanchine. But to get a sense of the global standing of Balanchine, 40 years after his death, other numbers might be more telling. Last year, for instance, about 50 other ballet companies across the world — including City Ballet of San Diego — performed his works, about 75 dances in total.

Balanchine likened his ballets to butterflies: “They live for a season.” But they have lasted much longer than that. They have become classics, cornerstones of the international repertory, 20th century equivalents of 19th century staples such as “Swan Lake,” danced everywhere by all the major ballet companies and most of the minor ones, too.

These ballets, like Balanchine, emerged from the same Russian Imperial tradition as “Swan Lake,” but were shaped — as he was — by America, and by modernism and other 20th century searches for the new.

George Balanchine teaching at the New York State Theater in Lincoln Center (circa 1964). Photo: Martha Swope. As seen in “In Balanchine’s Classroom.” A film by Connie Hochman. A Zeitgeist Films release in association with Kino Lorber.

(Zeitgeist Films / Kino Lorber)

Always intimately connected to music, they sometimes told stories and sometimes, like music, were more abstract arrangements of forms and energies. They stretched ballet — in technique, in how daring and dynamic it could be, in how little outside of itself it needed — and were unparalleled in range and influence, so much so that the state of ballet is often framed as a question: Where is the next Balanchine?

New York City Ballet still performs by far the most Balanchine — the most ballets, the most often — but performances by other companies probably reach as many or more people, certainly in more places. All these performances, though, are connected to New York City Ballet, because the dissemination of his works remains a matter of lineage — of connections to Balanchine.

In the early years of New York City Ballet, Balanchine sometimes staged works for European troupes with which he was connected: Paris Opera Ballet, the Royal Danish Ballet, what became the Royal Ballet. The reception to his innovations, especially the more radical ones, was highly variable, both abroad and in the more ballet-bereft country he had made his home. There, Balanchine was both generous and prudent with his ballets.

“He was giving them away for free, but he was in control,” said Jennifer Homans, author of “Mr. B: George Balanchine’s 20th Century.” “Looking at the correspondence, you can see he was careful about who could do it and who couldn’t, and about which ballets could be done by others and which couldn’t.”

He staged them himself, or he sent people he trusted. Francia Russell danced with City Ballet from 1956-61. Since 1964, when she became a ballet master at the company, she has staged more than 200 productions of Balanchine ballets for other troupes.

“They weren’t many people doing it at the beginning,” she said. “At first, I staged only ballets that I had actually danced.” Later, it became possible to consult films, but Russell didn’t use them much. “I always said I’m staging them the way I danced them when with Mr. B was with us.”

Ballet choreographer George Balanchine,left, instructs ballerina Patricia McBride in 1966. Balanchine, considered to be one of the founders of American ballet, made McBride the principal dancer at the New York City Ballet in 1961.

(Anonymous / Associated Press)

It was during the 1960s that City Ballet became a dominant institution, with a custom-built theater in the new Lincoln Center. An exceptionally large grant from the Ford Foundation put City Ballet and its affiliated School of American Ballet at the helm of a program to support ballet and ballet education.

Following Balanchine’s recommendations, the foundation granted seed funding to regional troupes such as Boston Ballet, which was founded in 1963 by E.Virginia Williams. In the early ’60s, she developed a collegial relationship with Balanchine who allowed her to observe his company rehearsals, study his teaching methods and bring her students to learn from him at the School of American Ballet.

Balanchine granted these fledgling companies something nearly as important: some of his works, free of charge.

That process continued as members of City Ballet founded their own companies or became artistic directors. Arthur Mitchell, the company’s first Black principal dancer, erected the repertory of Dance Theater of Harlem, founded in 1969, on a foundation of Balanchine pieces. Some City Ballet dancers found leadership roles in Europe, including Patricia Neary in Switzerland. In 1977, Russell and her husband, Kent Stowell, moved from Frankfurt Ballet to Pacific Northwest Ballet in Seattle and built it into another outpost of Balanchine repertory.

“Mr. B said he trusted me to only ask for the ballets I thought our dancers could do,” Russell said. “And whatever we wanted, it was ‘Of course, dear.’ He never asked for a penny.” These ballets, she added, “were an education in classical dance for our dancers,” a sentiment commonly voiced by artistic directors.

After Balanchine’s death, in 1983, the City Ballet diaspora spread further. In 1985, Edward Villella, a City Ballet star of the 1960s and ’70s, transformed Miami City Ballet into a Balanchinian troupe. That same year, Helgi Tomasson, after dancing with City Ballet for 15 years, became artistic director of San Francisco Ballet, a post he held until 2022. None of these and other companies led by City Ballet alumni danced Balanchine exclusively, but there was a family connection. Successors were often in the family, too. Russell and Stowell were followed (in 2005) by Peter Boal, and Villella was followed (in 2012) by Lourdes Lopez, both former principals at City Ballet and alumni of its school.

By this point, acquiring a Balanchine work was no longer “Of course, dear.” Skeptical that his works could last without him, and never much interested in posterity, he left his ballets in his will not to City Ballet but to 14 dancers and colleagues. The George Balanchine Trust was formed in 1987 to bring some order and stability to the licensing and restaging. The stagers it authorized were all dancers who had been with Balanchine in the classroom and rehearsal studio.

City Ballet of San Diego will present George Balanchine’s 1960 piece “Donizetti Variations” as part of its Balanchine Extravaganza concerts Nov. 4 and 5 at the Balboa Theatre.

(Courtesy of City Ballet of San Diego)

Now Balanchine works circulated to places where they had not before been part of the repertory. Russell was the first to stage one in China, in 1987. The next year, she brought one to the Soviet Union — to the institution then known as the Kirov Ballet (now the Mariinsky), where Balanchine had trained in the first decades of the 20th century but where few of the dancers had seen his works or knew much about him.

Always, there have been questions about authenticity. Balanchine frequently changed his choreography — for different dancers and stages — so which was the right version and in whose memory of it? And beyond the steps, was the spirit transferable, the elusive and usually unspoken ideas, the all-important musicality? Disagreements about these questions — applied to companies of dancers not trained in Balanchine’s aesthetic and modifications to technique, but also to City Ballet — were perpetual and often heated. For many viewers, Balanchine after Balanchine wasn’t Balanchine at all, and couldn’t be. Balanchine had suggested as much himself.

And now a new phase is coming. As Russell put it, speaking of her generation, “We’re all too old to preserve that tradition in the same way.”

Lopez, who is 20 years younger, made a similar point. “There aren’t many of us,” she said, “who worked with him and still talk about him as if he were next door.” But she also spoke about dancers, at Miami City Ballet and elsewhere, hungry to learn Balanchine’s aesthetic, dancers born after he died who talk about him as if they knew him.

It is those kinds of people who make Suki Schorer feel positive about Balanchine’s legacy. A City Ballet member from 1959-72, she wrote a book on Balanchine technique and has been teaching at the School of American Ballet for about 60 years. Asked about Balanchine’s influence today, she listed young teachers, trained at the school, who have fanned out across the county.

Silas Farley is one. Born 11 years after Balanchine died, he encountered the Balanchine lineage at the school of North Carolina Dance Theater, which was run by former City Ballet stars Patricia McBride and Jean-Pierre Bonnefoux. Farley became obsessed with Balanchine lore, which he absorbed deeply at the School of American Ballet and as a City Ballet member from 2013-20.

Farley said his students are “empowered by all of Balanchine’s cool amendments and extensions of classical technique. They delight in the granular and the grand, the nuances and the capacity to dance more expansively, more freely.” Balanchine’s works, Farley added, “are such a big part of their understanding of what ballet is.”

Their understanding and everyone else’s. Those works, however altered by time, remain ubiquitous. Nikolaj Hübbe, a Danish dancer who performed with City Ballet from 1992 to 2008 and has led the Royal Danish Ballet ever since, is one of those who believe in their enduring power.

“I don’t think I’ve ever worked with a dancer, even if Balanchine was foreign to them, who did not have an epiphany, a wow feeling, dancing his ballets,” Hübbe said. “Our dancers love them, revel in them. There’s a logic that speaks to all classically trained dancers. The choreography sings well. I don’t think that will ever go away.”

City Ballet of San Diego will present George Balanchine’s 1946 piece “The Four Temperaments” as part of its Balanchine Extravaganza concerts Nov. 4 and 5 at the Balboa Theatre.

(Courtesy of City Ballet of San Diego)

City Ballet of San Diego’s co-founder and artistic director Steven Wistrich was fortunate to have been coached by Balanchine after earning a scholarship to the School of American Ballet at the age of 16. He became Boston Ballet’s youngest principal male dancer and went on to dance in principal roles for many of the companies authorized to present Balanchine’s works around the world.

It was at Boston Ballet where Wistrich met his wife, fellow dancer Elizabeth Wistrich, who is City Ballet of San Diego’s co-founder and resident choreographer. Launched in 1993, City Ballet of San Diego pas produced more than 60 of Elizabeth Wistrich’s ballets. It is also the largest presenter of Balanchine ballets in Southern California with 19 of the master’s works in its repertoire.

City Ballet is authorized to present Balanchine works in San Diego, which involves paying a licensing fee to the New York-based George Balanchine Trust, an organization that ensures a company is capable of performing the works as Balanchine intended. There also is a separate fee for a Trust-approved Balanchine “repetiteur” or coach, who assists in staging a production.

Each year, City Ballet of San Diego presents a different concert of Balanchine works. This fall’s concert will feature ballet works from three different periods of Balanchine’s career.

“Serenade” — Composed in 1935, this is the first original ballet Balanchine created in America and is one of the signature works of New York City Ballet’s repertory. The ballet is performed by 28 dancers in blue costumes in front of a blue background. Originating it as a lesson in stage technique, Balanchine worked unexpected rehearsal events into the choreography. It is set to Tchaikovsky’s Serenade for Strings in C. It was last staged by City Ballet of San Diego in 2017.

“The Four Temperaments” — Composed in 1946 and set to an original score by Paul Hindemith, this is one of New York City Ballet’s earliest experimental works, fusing classical steps with a lean, angular style. The dance was inspired by the medieval belief that human beings are made up of different “humours” that determine a person’s temperament, associated with the elements of earth, air, water and fire. it features 25 dancers. It was last staged by City Ballet of San Diego in 2019.

“Donizetti Variations” — Composed in 1960 and set to excerpts from Donizetti’s 1843 opera “Don Sebastian,” this cheerful 25-minute work for 11 dancers was created to celebrate the 100th anniversary of Italy’s unification. It was last staged by City Ballet of San Diego in 2012.

When: 8 p.m. Nov. 4; 2 p.m. Nov. 5

Where: Balboa Theatre, 868 Fourth Ave., Downtown San Diego

Tickets: $39-$99

Online: cityballet.org/performances/balanchine-extravaganza/

Seibert writes for The New York Times. U-T arts editor Pam Kragen contributed to this report.