After earning his degree in musical instrument making he received a scholarship from the German Music Council to study musical instrument restoration under Dr. John Henry van der Meer and Dr. Freidemann Hellwig in Nürnberg in the German National Museum (Germanisches Nationalmuseum). Mandel had the chance to spend a time in the famous musical instrument collection of the Paris Conservatory of Music (today in the Cité de la Musique) to study the original 18th century vielles.
In 1988 he became the chief manager of the Interconcert’s “Musica Antiqua” department. In 1992 he founded his own company the Mandel Productions Limited Co.
His solo bookings include the NBC Today Show and the WQXR “Listening Room” in New York City, the WFMT “Studs Terkel Show” in Chicago, the Berkeley Festival of Early Music and Exhibition in San Francisco, the Purcell Room in London, the BBC TV “Pebble Mill at One” show in Birmingham, the “Old Jaffa Chamber Music Festival” in Tel-Aviv, the Theatro Municipal in Rio de Janeiro, the Bregenzer Festspiele in Austria, the NDR Talk Show in Hamburg, the Cervantino Festival in Mexico City, the Sydney University in Australia, and the “Beyond 2000″ show.
His main fields of research are the 16-17th century renaissance instrumental music, the 18th century French chamber music, the 19th century musical instrument inventions and instrument marvels and the 20th century electrophones. He has recently been decorated with the Knight’s Cross of the Order of the Hungarian Republic and the Hungaroton Classic Award.