String Quartet in D, No. 6 "The Frog" from 6 String Quartets, Op. 50, Hob. III / 44-49: II. Poco adagio [Recording: November 15, 1937]-Quatuor Pro Arte - 腾讯音乐娱乐-千万正版音乐海量无损曲库新歌热歌天天畅听的高品质音乐平台！