Olfactory language

A language of smell could work similarly to musical notation. If we codify different scents in a range from sweet-smelling, say, to putrescent, then we could create a notation to represent different types of scents. Perfume manufacturers could create smell harmonies in theory prior to testing them in practice. And there is an everyday use: we could read off the smell notation to determine what cologne we want to wear with our deodorant.