Listen to Instruments of the Orchestra: Bartok: Music for Strings, Percussion and Celesta: IV. Allegro molto online. Instruments of the Orchestra: Bartok: Music for Strings, Percussion and Celesta: IV. Allegro molto is an English language song and is sung by Jeremy Siepmann. Instruments of the Orchestra: Bartok: Music for Strings, Percussion and Celesta: IV. Allegro molto, from the album Instruments of the Orchestra (The), was released in the year 2002. The duration of the song is 5:06. Download English songs online from JioSaavn.