KEY POINTS:
Keyboardist Danny Federici, who for four decades played alongside rock star Bruce Springsteen as part of the E Street Band and helped define his rollicking sound, has died of melanoma.
He was 58. Federici's death at Memorial Sloan-Kettering Cancer Centre in New York was announced on Springsteen's official website and the rocker postponed a pair of weekend concerts in Florida.
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