Maybe these links will be of some use to you:
Classical Music: Identify Music Clip, violin sonatas, violin sonata
Classical Music: Please identify the music in this video clip, language narration, music score
I'd recommend you upload the clip yo Imafeshack to save you emailing it. They will host the file and provide a link which you can copy and paste so that people can just click the link to hear the piece of music.
ImageShack® - Image Hosting