Listen to Trio Sonata in G Major, BWV 1039: I. Adagio online. Trio Sonata in G Major, BWV 1039: I. Adagio is an English language song and is sung by Studying Music Group. Trio Sonata in G Major, BWV 1039: I. Adagio, from the album Classical Music for Study 2017 – The Best Chill Out Compilation, Music for Learning, Study, was released in the year 2017. The duration of the song is 3:46. Download English songs online from JioSaavn.