Improvisations 1 - 4 - Dudek, Gerd 1938-2022; Lovens, Paul 1949-; Christmann, Günter 1942-; Rutherford, Paul 1940-2007; Honsinger, Tristan 1949-2023; Kowald, Peter 1944-2002; Wheeler, Kenny 1930-2014; Parker, Evan 1944-; Mangelsdorff, Albert 1928-2005; Brötzmann, Peter 1941-2023; Niebergall, Buschi 1938-1992; Pilz, Michel 1945-2023; et al. (Japo Records, 1978)