She has already bewitched us several times in performances during the Jazz All-Year Round series and the Festival — most recently in the summer of 2011 in Club Soda. As spellbinding as ever, Miss Barber returns to present her new album, Chansons, paying tribute to the language of Molière. Marshaling all her inimitable charm, the singer sublimely serenades us with such standards of the ’40s, ’50s and ’60s as Les feuilles mortes, La javanaise and Quand les hommes vivront d’amour. Sheer musical ecstasy.