For the next six years, Gino became a member of the Berlin State Opera and signed a four-year contract with Deutsche Grammophon singing in Leipzig, Danzig, Hamburg, Vienna and Paris.
At age 27 he was called to Rome by the conductor Tullio Serafin, who has accompanied his debut at the Opera House in The Barber of Seville by Gioachino Rossini.
During his long career, Gino has interpreted various works into Italian and German languages singing along Beniamino Gigli, Tito Gobbi, Italo Tajo, Jon Vickers, Maria Callas, Erna Berger, Rosanna Carteri, under great conductors such as Paul Hindemith, Herbert von Karajan and the already mentioned Tullio Serafin.
As a light lyric tenor, Gino recorded arias and duets from Don Pasquale, L'elisir d'amore, and La bohème over a period of 45 years.
Gino also appeared in several Italian films depicting an opera singer, chosen also for his photogenic (see IMDB filmography in external links).