Borge's daughter, Rikke Borge, said her father died peacefully in his sleep at his home as the family was gathering to celebrate Christmas. He had just returned from a trip to Copenhagen, the city of his birth.
For decades, Borge delighted audiences by deflating the pomposity of classical music. He fell off his bench, played music upside down and repeatedly milked laughs from such classic routines as "phonetic punctuation" in which he used goofy sounds to indicate commas, periods and question marks in his monologue.
"I think he brought laughter to every person he came in contact with," Rikke Borge said Saturday. "He had a long and happy life."
Borge kept up a busy career into his 80s, touring and issuing videos, including his most popular, The Best of Victor Borge, which sold some 3 million copies. His longtime agent, Bernard Gurtman, said he had had concerts booked for the next two years.
"Some people reach the point where they must try desperately to hold on to something that isn't there anymore, no matter how great they are," Borge said in an interview in 1986. "This is where I am very, very lucky. We all do what we can, we all have limitations. Apparently, within my limitations, there is enough to go on and on and on and on."
Borge performed 100 or more nights a year, sometimes as pianist and sometimes as conductor, usually as a clown but sometimes in dead earnest. In his later years, he directed Mozart's Magic Flute in Cleveland and prepared a concert version of Carmen.
In 1999, he was one of five performers selected for the Kennedy Center Honors.
"He's never said a four-letter word, never had any dirt," Gurtman said. "He's a total professional that you meet once in your life. He was a trailblazer like Milton Berle, he did it once, and did it live."
Borge was born Jan. 3, 1909, as Boerge Rosenbaum to a family of musicians. He learned English by spending day after day in movie theaters and memorized some of his routines phonetically. Rudy Vallee later gave him a shot at radio, and he became a regular on Bing Crosby's Kraft Music Hall.
He changed his name to Victor Borge when he came to America because it sounded more American and was easier to pronounce, his daughter said.
As a child, Borge spent hours at the Royal Theater in Copenhagen where his father, Berhard Rosenbaum, was a violinist. A few years ago, Borge returned to the theater to fulfill a longtime dream of conducting the Royal Theater's symphony orchestra. He was scheduled to conduct there again in 2001.
"He was an incredible human being," said Niels Joergen Kaiser, a close friend of Borge's in Denmark who wrote the entertainer's 1999 biography. "He was gifted. He was able to combine musicality and humor"
In Hollywood, Borge appeared in Higher and Higher with Frank Sinatra in 1943 and Meet the People in 1944. He became a U.S. citizen in 1948.
In 1953, Borge's one-man show, Comedy in Music, began a run of 849 performances, the Broadway record for a solo show. He revived it in 1977 in a limited run of one month that was extended to two.
Despite his fame, Borge felt an insecurity that kept him from a leisurely retirement or from indulging his passion for sailing.
"When you are trying to defend a position, or create a position, in any field in your life, then every change, every move, has to be defended," he said in 1986. "Every move can be the end of it or an advance. You have to be courageous."
His routines came from reality. Borge once saw a pianist slide right off his bench while playing a concerto, and he recreated that disaster hundreds of times.
"I do a thing with a page turner. Everybody who has ever tried to have a page turner knows that it is terribly dangerous, and the better musician you are the more you have been exposed to mistakes," Borge said. "So, when I do that routine the orchestra members just fall off their seats. They all know.
"Many in the audience also know it, but the ones who do not know the reality will laugh at the clowning of it."
In his moments of serious playing, Borge was praised as a distinguished proponent of the Romantic style, but his serious recordings amounted to one side of a record. He said a microphone made him nervous, "because as a musician I know how to do it and I know I can do it. And if it doesn't turn out the way I really can do it, I don't want it."
Borge made his concert debut as a pianist at age 13, but his friends knew him as a parlor comedian. In 1931, a new career opened when he wrote the music for an amateur show and then substituted for the star.
Borge often made Adolf Hitler a butt of his jokes, and he was fortunate to be in Sweden when the Nazis invaded Denmark in 1940. Soon after, he and his American wife, Elsie, left for the United States, arriving with nothing but their Scottish terrier.
In an Associated Press interview when he was 80, Borge said "luck, good fortune and stamina" kept him performing.
"I never have to get `up' for a performance," he said. "The moment I walk on the stage, no matter what my mood, if I have any regrets or feel sick or in pain, all that disappears. That is when the climax of my day occurs."
"We should remember him with a smile," Kaiser said Saturday, adding a much-repeated quote of Borge's and title of his biography: "The smile is the shortest way between people."
Borge is survived by five children, nine grandchildren and one great-grandchild. His second wife, Sarabel, died in September at the age of 83.
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