The season pass gives you access to all the regular Piknic Électronik events of summer 2021 as well as events that could take place in 2020, given they are allowed #covid-19.
The pass does not give you access to other events that take place on site. It is non-transferable. Only the person who bought the season pass is authorized to use it. For student passes, you will need to show proof that you were a student in the last year.