Listen to Mozart: Symphony No.40 in G minor, K.550 1. Molto allegro online. Mozart: Symphony No.40 in G minor, K.550 1. Molto allegro is an English language song and is sung by I M, Murielle Stadelmann, Sándor Végh and Camerata Academica Salzburg. Mozart: Symphony No.40 in G minor, K.550 1. Molto allegro, from the album I Mozart Lounge, was released in the year 2005. The duration of the song is 4:22. Download English songs online from JioSaavn.