Arrival of the Queen of Sheba (Handel).
Hope you like it! The British Mandolinist Simon Mayor played this on one of his early albums (although his was played a halfstep up I believe - he also played it on TV, check it out on youtube!).
Interestingly, the lowest note on the viola part is a G, so it fits nicely on a mandolin (which means I didn't have to invest in a mandola..even though i'd like to).