1) Crazy thing to do
Test it to see where they draw the line.
Dress up as a devil, claim it is a Satanist national holiday and play thrash metal (backwards and not too loudly, comparable to the choir's volume) on the University grounds.
If that doesn't get their attention then move onto phase 2.
Start handing out small packs of Sulfur with "Momento from Hell" written on it and ask people "Have you heard the bad news?". Start talking to them about how easy it is to convert to Satanism, just one little sin is all it takes. Surely they just want to gorge on some chocolate or covet a neighbor's ass. Explain how nice it will be in the afterlife in hell. Explain how hell has all the best musicians and artists, etc, and if they want to argue you can also remind them that hell has all the lawyers as well.
Surely by this point you would have the attention of the university authorities, at which point you can start making comparisons between your performance and the christian singing.
2) Normal thing to do
As they are celebrating a Christian holiday I don't see the problem with religious songs. However, if the school is meant to be open on the topic of religion, then try and rustle up a few muslims/jews/whatever, and try and organize an alternate faith event. See how the school reacts to that.
Test it to see where they draw the line.
Dress up as a devil, claim it is a Satanist national holiday and play thrash metal (backwards and not too loudly, comparable to the choir's volume) on the University grounds.
If that doesn't get their attention then move onto phase 2.
Start handing out small packs of Sulfur with "Momento from Hell" written on it and ask people "Have you heard the bad news?". Start talking to them about how easy it is to convert to Satanism, just one little sin is all it takes. Surely they just want to gorge on some chocolate or covet a neighbor's ass. Explain how nice it will be in the afterlife in hell. Explain how hell has all the best musicians and artists, etc, and if they want to argue you can also remind them that hell has all the lawyers as well.
Surely by this point you would have the attention of the university authorities, at which point you can start making comparisons between your performance and the christian singing.
2) Normal thing to do
As they are celebrating a Christian holiday I don't see the problem with religious songs. However, if the school is meant to be open on the topic of religion, then try and rustle up a few muslims/jews/whatever, and try and organize an alternate faith event. See how the school reacts to that.
A finite number of monkeys with a finite number of typewriters and a finite amount of time could eventually reproduce 4chan.