With a scholarship granted by the Hellenic Foundation for State Bursaries, he moved to Vienna, where he continued with his cello studies at the Hochschule für Musik under the expert guidance of Vladimir Orloff and André Navarra, earning his diploma in 1975.
Alongside his cello studies, he attended the class of Hans Swarowsky in orchestra conduction from 1973 to 1977, in which year he gained his diploma at chef d’ orchestre.
He has also attended seminars held by conductors Miltiades Caridis (Vienna) and Otmar Suitner (Weimar).
Byron Fidetzis has also received distinctions by the Union of Drama and Music Greek Critics for his recording output.
In 2010, the Department of Music Studies of the National and Kapodistrian University of Athens presented him with an Honorary Doctorate.