Listen to Norma - Season 1950. Her debut in Mexico with Guiletta Simionato: Mira o Norma...Sí fino all'ore estreme online. Norma - Season 1950. Her debut in Mexico with Guiletta Simionato: Mira o Norma...Sí fino all'ore estreme is an English language song and is sung by Maria Callas. Norma - Season 1950. Her debut in Mexico with Guiletta Simionato: Mira o Norma...Sí fino all'ore estreme, from the album Maria in Mexico, was released in the year 2005. The duration of the song is 6:49. Download English songs online from JioSaavn.