Listen to Variations on an Original Theme in D Major, Op. 21 No. 1 online. Variations on an Original Theme in D Major, Op. 21 No. 1 is an English language song and is sung by Classical Ambient Relax Collective. Variations on an Original Theme in D Major, Op. 21 No. 1, from the album Daily Rest – Music for Relaxation, Peaceful Night, Calm, Instrumental Songs, Classical Chillout After Work, was released in the year 2016. The duration of the song is 2:43. Download English songs online from JioSaavn.