Listen to Mozart: Symphony No. 40 in G Minor, K. 550: I. Molto allegro online. Mozart: Symphony No. 40 in G Minor, K. 550: I. Molto allegro is an English language song and is sung by Royal Concertgebouw Orchestra and Josef Krips. Mozart: Symphony No. 40 in G Minor, K. 550: I. Molto allegro, from the album The 101 Most Essential Classical Music Pieces Ever, was released in the year 2012. The duration of the song is 9:31. Download English songs online from JioSaavn.