Listen to An Alpine Symphony, Op.64: VI. Dangerous Moments - On The Summit - Vision online. An Alpine Symphony, Op.64: VI. Dangerous Moments - On The Summit - Vision is an English language song and is sung by London Symphony Orchestra and Rafael Frühbeck De Burgos. An Alpine Symphony, Op.64: VI. Dangerous Moments - On The Summit - Vision, from the album Strauss: An Alpine Symphony - Four Last Songs, was released in the year 1991. The duration of the song is 9:44. Download English songs online from JioSaavn.