Mature Minds is a collaboration that has been slowly brewing between Trevor Walker and Nordic Trax label boss Luke McKeehan since early 2010. After a vocal session with soul and reggae singer Gary Moore, aka Rankin Youth of Soul Jazz Orchestra fame, the 'Concrete Castles' song was born. The final mixdown involved Montreal-based producer Miguel Graca who completes the Mature Minds line-up and also contributes his own version. Nordic Trax enlisted the services of long-time musical friends Halo Vargo and Rise Ashen both of whom delivered deadly interpretations of the original. The end result: 6 sparkling versions of this high-powered anthem which glide easily between deep, tech house and broken beat, all the while carrying a heavy message for those whose minds are open enough to hear it.