The Warp Records band Plaid is promoting its new Spokes album with a mini-site (here). At the time of this writing, six of the album’s 10 ambient-techno tracks are available in streaming mode. An added incentive: the site includes a puzzle that, when solved, yields an “exclusive” downloadable track, titled “Awotm.” The band’s puzzle hint is: “You will need speakers, think L to R.” There’s lots of good music online for free, but sometimes you still have to work for it.