- Harald Sack Ziegler is published by Freibank
- Activities as Harald Sack Ziegler since 1979
- half of Sack & Blumm, Sack & Flim, Sack & 96, Sack & E*Rock, Kirchhofs Toechter
- member of Jaruzelski
- guest musician for F.S.Blumm, Mouse On Mars, Flim, C-Schulz & hajsch, Schmitz & Niebuhr, Marcus Schmickler, Trespassers W, Trend, Jona, Wolke, Ilse Lau .
