Organization and arrangement of educational and instructional seminars and conferences regarding legal, medical and political developments and societal attitudes about medical marijuana not including the provision or display of marijuana, marijuana-based preparations, or marijuana extracts or derivatives, synthetic marijuana, or other substances controlled by the Controlled Substances Act; organization and arrangement of exhibitions for educational, cultural and entertainment purposes regarding legal, medical, and political developments and societal attitudes about medical marijuana not including the provision or display of marijuana, marijuana-based preparations, or marijuana extracts or derivatives, synthetic marijuana, or other substances controlled under the Controlled Substances Act; organization and arrangement of musical exhibitions