Listen to Streichquartett, Op. 61: Was im Stillen erblüht - Allegro con brio online. Streichquartett, Op. 61: Was im Stillen erblüht - Allegro con brio is an English language song and is sung by Heinrich Hartl. Streichquartett, Op. 61: Was im Stillen erblüht - Allegro con brio, from the album Hartl: Böhmen liegt am Meer, was released in the year 2007. The duration of the song is 2:23. Download English songs online from JioSaavn.