Ahmet Ertegun, the music magnate who founded Atlantic Records and shaped the careers of John Coltrane, Ray Charles, the Rolling Stones, Led Zeppelin and many others, died 2006 in Manhattan. He was 83. A spokesman for Atlantic Records said the death was the result of a brain injury suffered when Mr. Ertegun fell backstage at the Beacon Theater in Manhattan on Oct. 29 as the Rolling Stones prepared to play a concert that marked former President Bill Clinton’s 60th birthday. He had been in a coma since then. Mr. Ertegun was the dapper son of a Turkish diplomatic family. He was equally at home at a high-society soiree or a rhythm and blues club, the kind of place where, in the 1950s, he found the performers who went on to make hits for Atlantic Records, one of the most successful American independent music labels. Mr. Ertegun said he fell in love with music when he was 9. In 1932, his older brother, Nesuhi, took him to see the Duke Ellington and Cab Calloway orchestras at the Palladium Theater in London. Along with a partner, Herb Abramson, Mr. Ertegun founded Atlantic Records in 1947 in an office in a derelict hotel on West 56th Street in Manhattan. By the 1950s, Atlantic developed a unique sound, best described as the mixed and polygamous marriage of Mr. Ertegun’s musical loves. Every so often, with his name spelled in reverse as Nugetre, Mr. Ertegun appeared as the songwriter on R&B hits like “Chains of Love” and “Sweet Sixteen.” In 1954, Atlantic released both “I Got a Woman” by Ray Charles and “Shake, Rattle and Roll” by Joe Turner. After his brother Nesuhi joined Atlantic in 1956, the label attracted many of the most inventive jazz musicians of the era, including Coltrane, Charles Mingus, the Modern Jazz Quartet and Ornette Coleman. In 1957, Atlantic was among the first labels to record in stereo. By the 1960s, often in partnerships with local labels like Stax in Memphis, Mr. Ertegun was selling millions of records by the leading soul musicians of the day, among them Aretha Franklin and Otis Redding. The Ertegun brothers and their partner, Mr. Wexler, sold the Atlantic label to Warner Brothers-Seven Arts in 1967 for $17 million in stock. Four years later, the brothers took some of the money and founded the New York Cosmos soccer team. Mr. Ertegun was now a rock mogul. Atlantic Records signed the Stones to a distribution deal when the band’s contract with Decca Records ended; Led Zeppelin; and Crosby, Stills & Nash, who became Crosby, Stills, Nash & Young after Mr. Ertegun persuaded Neil Young to join the group. Ahmet Ertegun was born in Istanbul on July 31, 1923. His father, Mehmet Munir, was the legal counselor to Kemal Ataturk, the founder of modern Turkey. The young Ahmet grew up in that worldly realm. His father, then the dean of the diplomatic corps in Washington, died in 1944. That year, at 21, having earned a bachelor’s degree at St. John’s College in Annapolis, Md., Mr. Ertegun was taking graduate courses in medieval philosophy at Georgetown University. Mr. Ertegun and Ioana Maria Banu were married on April 6, 1961. Known as Mica, she became a prominent interior designer. She survives him, as does a sister. Nesuhi Ertegun died in 1989.