Listen to Keyboard Concerto No. 6 in F Major, Hob. XVIII:6: I. Allegro moderato online. Keyboard Concerto No. 6 in F Major, Hob. XVIII:6: I. Allegro moderato is an Instrumental language song and is sung by Igor Oistrakh, Natalia Zertsalova, Valentin Zhuk and Ensemble of the Soloists of Moscow Philharmonic Symphony Orchestra. Keyboard Concerto No. 6 in F Major, Hob. XVIII:6: I. Allegro moderato, from the album Elgar: Violin Concerto - Haydn: Keyboard Concerto No. 6, was released in the year 2020. The duration of the song is 6:55. Download Instrumental songs online from JioSaavn.