Artistic director of several record companies (EMI, Deutsche Grammophon, RCA Victor, Philips, Sony), he had more than a thousand discs recorded, including a hundred operas.

In this capacity, he obtained several Grammy Awards in Hollywood including Beethoven's nine symphonies by Herbert von Karajan with the Berlin Philharmonic in 1978, or the "most beautiful opera of the year" award for Bizet's Carmen in 1984.

In 1966, he and his collaborator Thérèse Darras founded a concert agency called Musicaglotz.

He then turned his attention to the careers of legendary artists such as Maria Callas, Herbert von Karajan, Alain Lombard, Alexis Weissenberg.

Glotz received the insignia of officier des Arts et Lettres, and chevalier de la Légion d'honneur en 2007.