Superstar singer Jessye Norman, an American soprano who showcased her majestic yet intimate voice at opera houses and orchestras around the world, died Monday, her family said. She was 74 years old.

One of the contemporary era's most revered opera singers, the Grammy-winner died "surrounded by loved ones" at a New York hospital due to septic shock and multi-organ failure, the result of complications from a spinal cord injury sustained in 2015, according to a statement obtained by AFP via a spokeswoman.

"We are so proud of Jessye's musical achievements and the inspiration that she provided to audiences around the world that will continue to be a source of joy," said her family.

Praising her "beautiful tone, extraordinary power, and musical sensitivity," New York's Metropolitan Opera -- where she sang more than 80 performances -- dedicated its Monday show of "Porgy and Bess" to Norman.

"Jessye Norman was one of the greatest artists to ever sing on our stage," said General Manager Peter Gelb in a statement. "Her legacy shall forever live on."

Born September 15, 1945 in Augusta, Georgia, Norman grew up surrounded by music as one of five children in a family of amateur artists.

She made a foray into gospel at age four, and as a young girl began listening to radio broadcasts of performances at the Metropolitan Opera, where she would eventually become legend.

"I don't remember a moment in my life when I wasn't trying to sing," she told NPR in 2014.

Growing up in the segregated American South, at five years old she sat in a "whites only" section in a train station, becoming an unknowing young activist.

"We come to Earth, I feel with a completely open heart," she told NPR. "And then we're told that we have to close it off to certain things. And that's a great shame."

A pioneering young black woman in the white world of classical music, Norman quickly became beloved for her seemingly effortless soaring voice and effervescent personality.

She studied music on a full-tuition scholarship at the historically black college Howard University in Washington before going on to the Peabody Conservatory and the University of Michigan.

She established herself in Europe in the 1970s, making her operatic debut in Berlin in 1969 before wowing elsewhere on the continent including Italy. She eventually moved to London and spent years performing recital and solo work.

Perhaps best known for her Wagnerian repertoire, the regal Norman made her Met debut in 1983 as Cassandra in Hector Berlioz's "Les Troyens" during the house's centennial season.

"Her huge voice is a velvet wonder, totally seamless when she so desires," wrote The Washington Post's Octavio Roca in a 1980 review.

"Yet she can also mold it to fit each style with an uncanny penchant for definitive creations."

Soul-healing voice

Norman holds a slate of honorary doctorates from prestigious schools including Juilliard, Harvard and Yale.

She earned a prestigious Kennedy Center Honor at age 52 in 1997, and president Barack Obama bestowed her with a National Medal of Arts.

Her notable performances include two US presidential inaugurations, the 60th birthday celebrations of Britain's Queen Elizabeth, the opening ceremonies of the Atlanta Summer Olympics in 1996, and at the bicentennial of the French Revolution in Paris in 1989.

The French declared the superstar singer a Commander in France's Order of Arts and Letters, also naming an orchid after her.

She took on much of the cost of opening the Jessye Norman School of the Arts, which provides free after-school arts programming to disadvantaged children in Georgia.

Her personal life remained shrouded in mystery, though her 2014 biography "Stand Up Straight and Sing!" alluded that a French aristocrat once proposed her with marriage.

At a 2014 Metropolitan Opera Guild luncheon honoring Norman, the Nobel-prize winning novelist Toni Morrison, who died earlier this year, praised the soprano's voice as a unique wonder.

"The beauty and power, the singularity of Jessye Norman's voice. I don't recall anything quite like it," Morrison said.

"I have to say that sometimes when I hear your voice, it breaks my heart," she said. "But all of the time, when I hear your voice, it healed my soul."