Declared Krautrock aficionados Walls got the rare chance to remix a classic of the genre with Moebius & Plank's "Infiltration" from their 1981 album "Material". Out came a welcomingly shuffling revamp that is also part of "Who's That Man - A Tribute To Conny Plank", a 4 disc CD Box honoring the legendary German producer who worked with the likes of Cluster, Can, Ash Ra Temple, Neu!, Eurythmics, Kraftwerk and many more. Fun facts: he once famously didn't allow David Bowie in his studio and is also responsible for the very first album of The Scorpions. The luxurious 4 CD box was issued by Grönland Records, who also prepared an exclusive 12" sampler for Record Store Day 2013 featuring Walls' rework as well as remixes from Popnoname, Kreidler and Eye/Boredoms.