Much like the recent Nas track, we have yet another remix by Massive Attack seemingly out of nowhere onto Soundcloud and with not an awful lot of info concerning it (frustratingly). This time out its what appears to be a cover of The XX track “Crystalised” from their 2009 self-titled album. Their new album, coincidentally (or not) is out next week.

Every band’s got em’. Those songs that are not on any of their albums or singles. Songs that for whatever reason have’nt got any kind of release. Fans may have heard them from the band in question experimenting with it live or having it featured on the soundtrack to whatever.

Massive Attack ain’t no different. They’ve got some pretty listenable tunes, if I do say so, that are’nt anyway to found anywhere in record stores or on iTunes. I’ve picked out ten of them for this poll along with a quick background to the track and what I think is the best sounding audio we have of it to date.