He has conducted Vox Ama Deus in various programs ranging from motets and madrigals to authentically staged Renaissance operas performed on original instruments.

He also conducted Ama Deus Ensemble in its yearly Good Friday performances at Cathedral Basilica of SS Peter and Paul in Philadelphia.

In 1984 Radu was invited to inaugurate and, in 1985, make the first LP solo recording on the newly rebuilt organ of the Imperial Chapel of Schönbrunn Palace in Vienna.

In December 1998, he conducted the 97-member Bucharest Philharmonic in a Gershwin Centennial Gala concert, featuring the Rhapsody in Blue, An American in Paris, and Porgy and Bess.

Since May 2000, Radu has conducted jazz concerts in Bucharest, with the "Sound" choir group, that has featured singer Teodora Enache and Johnny Răducanu.

[citation needed] In April 2003, Radu was bestowed the title of Honorary Citizen of the City of Bucharest by the mayor of his native town who became Romania's president.