The taRiffs package
This R package was developed to get a better understanding of the tariff system of the German collective rights society GEMA and the developing C3S tariff system. It is intended to be useful as a research tool, and not for any practical application beyond that.
Some of the tariffs are quite complex. Allthough we implemented everything to the best of our abilities, we do not warranty the correctness of these calculations. Also, the tariffs are constantly subject to change, and while you read this, some of these changes might not have been implemented yet.
If you need reliable feed back on these tariffs, you should try the official GEMA online calculator instead.
That being said, taRiffs is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. taRiffs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.