She was born in Osaka. She studied at the Tokyo University of the Arts, and won the piano prize of the 41st Music Competition of Japan. Her international career began with her winning second prize in the 1975 Marguerite Long-Jacques Thibaud Competition in Paris. She continued her studies with Aldo Ciccolini at the Conservatoire de Paris. In 1980 she won fifth prize at the International Chopin Piano Competition, after which Martha Argerich, who was a member of the jury, took patronage over her.
Ebi is one of the major pianists of our time  and her international career continues with performances around the world, with annual tours in Japan, and annual appearances at international music festivals including Festival de la Roque d'Anthéron in France, the Echternach Music Festival in Luxembourg, and La Folle Journée in France.
- 1975 - second prize in the 16th Long-Thibaud Competition
- 1980 - fifth prize (no fourth was awarded) in the 10th International Chopin Piano Competition
- 1981 - Leeds International Piano Competition
- 1993 - French government Chevalier des Arts et des Lettres, distinction
- 2002 - Japanese Exxon-Mobile Music Prize