Listen to Un ballo in maschera: "Teco io sto" (Riccardo, Amelia) online. Un ballo in maschera: "Teco io sto" (Riccardo, Amelia) is a German language song and is sung by Orchestra Del Teatro Alla Scala Di Milano, Antonino Votto, Giuseppe Di Stefano and Maria Callas. Un ballo in maschera: "Teco io sto" (Riccardo, Amelia), from the album The Ultimate Opera Box - The 250 Greatest Pieces of Opera, was released in the year 2015. The duration of the song is 1:32. Download German songs online from JioSaavn.