Please add "Boccherini La Musica Notturna Delle Strade Di Madrid No. 6, Op. 30". If you search some other databases you will find that this piece is very popular because it is used at the end of the Film "Master and Commander". (Violin and Cello) You have some other Boccerini sheet music in your collection so i believe copyrights should not make any troubles.
Just watch http://www.youtube.com/watch?v=iZVN5Y6dtOk and enjoy!