Following Boards of Canada's suprise Record Store Day release being found at Other Music in New York over the weekend, musical detectives have been out in force trying to decode its secrets.

Now, courtesy of one lucky customer at Rough Trade East in London, another single has been found. The store confirmed the news on Twitter:

We suspect that the audio will find its way onto the internet at some point this evening, though maybe the customer will keep it to herself?

Update: FACT have pointed to this video, which in turn points to this clip. The 2020k blog points out that the Youtube Channel is called Hell Interface, which is a past alias of the duo. Interesting!