Listen to Grieg: Piano Concerto in A Minor, Op. 16: I. Allegro molto moderato online. Grieg: Piano Concerto in A Minor, Op. 16: I. Allegro molto moderato is an Unknown language song and is sung by Stephen Kovacevich, Bbc Symphony Orchestra and Sir Colin Davis. Grieg: Piano Concerto in A Minor, Op. 16: I. Allegro molto moderato, from the album The 50 Most Essential Classical Music Pieces Ever, was released in the year 2013. The duration of the song is 12:25. Download Unknown songs online from JioSaavn.