Listen to Piano Concerto No. 4 in G Major, Op. 58: I. Allegro moderato online. Piano Concerto No. 4 in G Major, Op. 58: I. Allegro moderato is an English language song and is sung by Wilhelm Kempff and Paul van Kempen. Piano Concerto No. 4 in G Major, Op. 58: I. Allegro moderato, from the album Beethoven: Piano Concertos & Appassionata, was released in the year 2010. The duration of the song is 16:57. Download English songs online from JioSaavn.