Great Kosmische Musik plaid music Saturday, May 9, 2009 the Great Kosmische Musik Harmonia was formed by the addition of Neu! guitarist Michael Rother to Cluster , the duo of Hans-Joachim Roedelius and Dieter Moebius . Hans-Joachim Roedelius - Keyboards, vocals (Cluster) Michael Rother - Guitars, keyboards, vocals (Neu!) Dieter Moebius