album_presenter.description.discover album_name=Keep Hanging on, artist_name=Jutta Gruber & the martin schrack trio, records_count=1, countries_count=1, countries=Germany, media=CD, year_range=2001album_presenter.description.releases album_name=Keep Hanging on, artist_name=Jutta Gruber & the martin schrack trio, records_count=1, countries_count=1, countries=Germany, media=CD, year_range=2001album_presenter.description.countries album_name=Keep Hanging on, artist_name=Jutta Gruber & the martin schrack trio, records_count=1, countries_count=1, countries=Germany, media=CD, year_range=2001album_presenter.description.media album_name=Keep Hanging on, artist_name=Jutta Gruber & the martin schrack trio, records_count=1, countries_count=1, countries=Germany, media=CD, year_range=2001