Willi Stein was born in Limburg an der Lahn. He studied voice with the vocal-soloists Pfeifle and Prof. Alfred Sandor Kónja and attended the opera school at the State Academy of Music in Stuttgart. Furthermore, he masterclasses with Maestra Prof. Raggi Valentini in Pesaro. He sang at various stages supporting opera and operetta roles, such as "The Rodolfo" from "La Bohème", "The Duke" of "Rigoletto" and "Cavaradossi" in "Tosca". In 1984, he was a participant in the Final Luciano Pavarotti Competition in Modena.