Listen to Symphony No.1 in C Major, Op. 21 : I. Adagio molto - Allegro con brio online. Symphony No.1 in C Major, Op. 21 : I. Adagio molto - Allegro con brio is an English language song and is sung by Tbilisi Symphony Orchestra and Vakhtang Kakhidze. Symphony No.1 in C Major, Op. 21 : I. Adagio molto - Allegro con brio, from the album The 100 Best Classical Masterworks: Famous Overtures and Adagios, was released in the year 2011. The duration of the song is 10:08. Download English songs online from JioSaavn.