Most of our Correspondents post some details right here on The Answerbank - it seems to work very successfully. If you can add some detail about the particular piece of music - a lyric if it has one, or something that distinguishes it from any others because most ads. have a series of pieces, and often use dofferent pieces of music. So, bring the Answerbank your details, and someone, somewhere will find you an answer - perfect!