Love songs have a way of distilling all the exciting, confusing, thrilling feelings of falling for someone into a perfect three and a half minutes of clarity. They say things more artfully than you can express them yourself, and make such a strong impression that hearing the opening notes, even years later, can take you right back to when you fell in love.

Of course that also means that if the relationship doesn't last, the song might be ruined forever by your lousy ex. Just in time for Valentines Day, "In Conversation" is exploring what makes a great love song... and a great breakup song.

Do you and your sweetheart have a special song that always brings you back together? When you're unlucky in love, do you like to wallow with sad songs, or do you prefer to scream-sing along with angry rock?