[4] Leonard Bernstein saw her performance and cast her in the role of Maria in a production of his West Side Story at the Hamburg State Opera[5] in 1979 which started her career in Germany.

[1] She was a member of the ensemble of the Theater Aachen from 1979 to 1982, and appeared as a guest at the am Deutsche Oper Berlin, La Fenice in Venice and the San Francisco Opera.

[1] Sasson appeared at the Bayreuth Festival as a Flower Maiden in Parsifal first in 1982, alongside Peter Hofmann in the title role who was to become her husband.

[7] She wrote in 2010, together with Jochen Sautter, a musical Das Phantom der Oper[8] and appeared in the role of Christine, touring in Germany for several years.

[9] Again with Sautter, she wrote a musical Der kleine Prinz, based on Le Petit Prince, in 2015, which was performed at theatres in Germany and Switzerland.