Name that tune

I found a compilation mix on cassette (anyone remember those) that I used at our wedding 20 years ago. On it there is a piece of classical (baroque) music that I can’t for the life of me remember what the piece is or who the composer is. Can anyone help?

¬†Update 19 Dec 2013: Thanks to a tip-off from Paul Lin, I now know that this piece is Antonio Vivaldi’s Concerto for 2 Mandolins, Strings and Continuo in G, RV 532. I even managed to find the exact recording in iTunes to purchase.

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