We’re gradually adding various less conventional media access points (“Portals”) to the Songs of the Interstitium project. Currently we’re playing around with QR codes embedded in images (which will be used in posters/in the pages of The City of Quartz/on postcards, etc.). The coded images lead to extra web content. You can try it with the image and QR codes featured above (though you may need to open the full image and blog post to get a clear image scan). To unlock the content download a free QR code scanner app to your favourite device – e.g. a phone, lap-top with camera or tablet – and scan the above (and below) QR codes (embedded in the poster) to access ‘mystery content’.