I made Discordia a disambiguation page. I hope that's OK! I added an article about bands named Discordia and put links. Please let me know if you want it changed!
Sorry I didn't see this earlier. Yep, that's Ok. It was just a redirect anyway. I added Discordian, but really I don't know we need an article on both Discordian and Discordianism. Thanks for asking!