Those whose who are familiar with the movie "Philadelphia" will probably remember this aria from the opera "Madam Butterfly". This is the song Hanks was listening to when he wass undergoing chemotherapy at home and he was explaining to his lawyer the scene from Puccini's Madam butterfly. Maria Callas is one of the best-loved operas singers of her generatio. Her voice stands out from the rest with its haunting vibrato. Again, courtesy of YouTube, Maria Callas sings an aria from Giacomo Puccini's Madame Butterfly. This song is the end of the final Act and is from the recorded version.