Playing pop music via postcards with Bare Paint!

The Listening Post is a paper poster that plays song clips via printed electronics. Paper posters that play music via printed circuits made with conductive ink have been unveiled.

The prototype "Listening Post" poster is a guide to bands performing locally. The interactive poster plays a short clip of a band's music when a thumbnail image is pressed. Tickets can also be booked via the poster.

The low cost of printing mean anything that uses paper or card could soon be much more interactive, said the poster's inventors. It is one of several "paper apps" that have been developed by a consortium of British scientists, musicians and researchers being demonstrated at the South By Southwest Show in Austin, Texas.