Credit: Anthony Pidgeon/Redferns

The music world mourns one of its most unique and unforgettable voices in Phoebe Snow, who died Tuesday morning at age 60, the Associated Press reports. Best known for her 1970s single "Poetry Man" and subsequent hits "Love Makes a Woman" and "Mercy, Mercy, Mercy," the singer-guitarist's death stemmed from a 2010 brain hemorrhage.

(Snow had battled blood clots, pneumonia, congestive heart failure and a stroke in her later years.)

"The loss of this unique and untouchable voice is incalculable," Snow's manager, Sue Cameron told the AP. "Phoebe was one of the brightest, funniest and most talented singer-songwriters of all time."

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Despite her impressive musical debut in the mid-1970s, Snow stepped out of the spotlight to care for her disabled daughter, Valerie.

"[Phoebe was] a magnificent mother to her late brain-damaged daughter, Valerie, for 31 years," her manager said. "Phoebe felt that was her greatest accomplishment."

Snow, who collaborated such greats as Paul Simon, Mavis Staples and Steely Dan's Donald Fagen, sang at Howard Stern and Beth Ostrosky's 2008 wedding.