Listen to Tristan und Isolde: "Mild und leise wie er lächelt" (Isolde) online. Tristan und Isolde: "Mild und leise wie er lächelt" (Isolde) is a German language song and is sung by Kirsten Flagstad, Philharmonia Orchestra, Chorus Of The Royal Opera House and Wilhelm Furtwängler. Tristan und Isolde: "Mild und leise wie er lächelt" (Isolde), 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 3:43. Download German songs online from JioSaavn.