Listen to Keyboard Concerto in F Major, Hob. XVIII:6: I. Allegro moderato online. Keyboard Concerto in F Major, Hob. XVIII:6: I. Allegro moderato is an Instrumental language song and is sung by Mikhail Vaiman, Alla Zhokhova, Lev Shinder and Leningrad Philharmonic Chamber Orchestra. Keyboard Concerto in F Major, Hob. XVIII:6: I. Allegro moderato, from the album Mikhail Vaiman: Selected Recordings, Vol. 2, was released in the year 2005. The duration of the song is 7:00. Download Instrumental songs online from JioSaavn.