Stop Rokkasho is a project run by the Japanese NGO Boomerang Net and headed up by musician Ryuichi Sakamoto. In order to bring attention to the nuclear reprocessing plant in Rokkasho in Aomori Prefecture, they get artists to contribute songs and other art to the cause. The music and other media are available on the website and as podcasts. The content is licensed to be freely distributable.
Ryuichi Sakamoto, Shing02, Christian Fennesz, Yakkle, Motoki Yamaguchi, DJ A-1, Ryota Hayashida, Aoki Takamasa, Mick Karn, Yuji Takahashi, Lieko Shiga, Tomoko Yoneda, Naoki Ishikawa, Hikaru Kayashi, Kitamura Yasushi, Yuri Shimojo, Ryoichi Kurokawa, Oqto, Alva Noto, Thomas Dolby, Ziffer, Matthew Seligman, Motiva, Elektel featuring Kenzo Saeki, Logic System / Hideki Matsutake (see also), Toshinori Kondo and Sugizo, Bajune Tobeta, DJ Senorina a.k.a. G.Rina, Ryoji Ikeda, Ryodan, Mieko Sudo, Ryo (Cocobat), Hisaya Hojo, Keiichiro Shibuya (Atak), Atom, DJ Krush, Akira Kadokawa, Octopod, and Jovian.
This list is not comprehensive.
Stop Rokkasho is a non-profit organization.