 Following the end of her singing career, Zamboni worked as a singing teacher in Milan for more than twenty years before retiring to Verona where she died in 1976.Zamboni was the first singer to record the role of Manon Lescaut in its entirety.On single discs, she also recorded "Vissi d'arte" from "Tosca", double arias from "Turandot", "Otello", "La traviata" and "Lohengrin" and duets from "La bohème" and "Carmen" with the great tenor Beniamino Gigli.