KOG Games has an interesting way of accessing the Velder Academy Concert dungeon during a new event. From now through October 10th, every 10 minutes spent in game will yield two Velder Academy Concert Tickets that grant access to the "dungeon". Once in, players find that Phoru is wreaking havoc on stage and it's up to them to "stop his madness and reap the rewards" by dodging sound wave and taking on the note monsters.
Players will need to be level 10 in order to participate and can collect Velder Academy Concert Bracelets that can be traded for a pet, consumables and more
Check out the Elsword site to learn more.