Carroll was born in
Worcester, Massachusetts. She began her classical training in piano at age eight, but by high school decided to become a
jazz pianist. She attended the
New England Conservatory of Music for a year, but left it as it conflicted with working for bands. In 1947
Leonard Feather dubbed her "the first girl ever to play
bebop piano." In the following year her trio, which featured
Chuck Wayne on guitar and
Clyde Lombardi on bass, worked briefly with
Benny Goodman. Later
Charlie Byrd replaced Wayne and
Joe Shulman replaced Lombardi. After Byrd's departure, Carroll decided to have it be a drums, bass, and piano trio. In the 1950s, Carroll and her trio worked on
Me and Juliet by
Rodgers and Hammerstein. The decade saw her career ebb due to changing musical tastes and personal concerns. ==Later career==