It shows the influence of Italian composers such as Bach's older contemporary Vivaldi.
Bach is known to have studied Vivaldi's music from around 1714 when he was working at Weimar.
[1] Italian influence can be seen in keyboard music he composed around that time.
However, the date of the concerto is the subject of dispute as the original score has not survived.
It could have been written at any of three locations: The piece has three movements: A typical performance of the concerto takes around 15 minutes.