From 1974 to 1980, Ferro was invited by Claudio Abbado at the Teatro Alla Scala and by Radio France to conduct the Orchestre National de France in a series of four concerts per year at the Salle Pleyel Champs Elysees in Paris. That would lead him to conducting several major orchestras including the Wiener Symphoniker, the Bamberg Symphoniker, the Orchestre de la Suisse Romande, the Orchestre Philharmonique de Radio France, the BBC Symphony Orchestra, the Orchestra WDR, the Cleveland Orchestra, the Gewandhaus Orchestra in Leipzig and the Staatskapelle in Dresden. He would also collaborate with the Orchestre National de France for many years.

In 1979, Ferro became Permanent Conductor of the Orchestra Sinfonica Siciliana and remained with the orchestra until 1997. Other positions he held included Principal Conductor of RAI Orchestra in Rome (1987-1991), Music Director of the Staatstheater in Stuttgart (1991-1997), Music Director of the Teatro San Carlo in Naples (1999-2004),  Principal Conductor of the Teatro Massimo in Palermo (2001-2006), and Music Director of the Teatro Massimo in Palermo (2014-2019). He also founded Bari Symphony Orchestra in 1967. The maestro also collaborated with many of the leading opera houses including the Teatro La Fenice, Teatro alla Scala, the Opera in Rome, the Bastille and the Chatelet in Paris, the Grand Theatre in Geneva, the Bayerische Staatoper , the Opera in Chicago, the San Francisco Opera, Los Angeles Opera, and the Deutsche Oper in Berlin.

For his musical contribution, Ferro won numerous awarded including the Premio Abbiati for his  interpretation of Strauss’ “Elektra” in Naples in 2003 and Openrwelt’s prestigious prize “Beste Auffùhrung 2012” for Bellini’s “La sonnambula” which he conducted in Stuttgart in April 2012.

The conductor also taught orchestra conducting at the School of Music in Fiesole and dedicated himself with great passion to training young musicians.

Over the years, Ferro went on to record for Sony, Emi, Erato, Unitel Classica and Deutche Grammophon.