A new concept of Scent Opera is going to be introduce soon. See WSJ report.
a “scent opera,” a new performance art that pairs music with a carefully orchestrated sequence of smells, some pleasant and some real stinkers. The opera, titled “Green Aria,” will test the boundaries of scent art when it opens at the Guggenheim Museum in New York May 31.
Earlier experiments were done in user interfaces where scent was used at computer terminas — those were not very successful because it is easy to create smell, but difficult to get rid of it so a new smell could be created.
In any case, this is interesting direction. Sooner or later, it is going to be a common experiential component.