Listen to Instruments of the Orchestra: Saint-Saens: Symphony No. 3, "Organ": II. Allegro moderato online. Instruments of the Orchestra: Saint-Saens: Symphony No. 3, "Organ": II. Allegro moderato is an English language song and is sung by Jeremy Siepmann. Instruments of the Orchestra: Saint-Saens: Symphony No. 3, "Organ": II. Allegro moderato, from the album Instruments of the Orchestra (The), was released in the year 2002. The duration of the song is 1:28. Download English songs online from JioSaavn.