 Vocal arrangement was overseen by Christoph Leis-Bendorff, while vocal production was helmed by Nik Hafemann.Mixing of "Reason" was handled by Jeo, who also played keyboards along with Brötzmann, Werner Becker, and Stefan Hansen.Selected as the group's final single before their hiatus, physical singles of "Reason" were released on November 24, 2003 by Cheyenne Records.