Editor's Notes & Price Research
Some restrictions may apply. Offer expires 04/30/2015 11:59 p.m. PDT. See forum thread for additional details and discussion. -Corwin
To get the discount enter the code on the checkout screen where it says "Apply a FanCode or gift code" and then check the box next to "April Concert Promo". The code is supposed to be good through 4/30/15 at 11:59 PM PDT, however it could possibly end at any time. There seems to be a limit of one discount per account.
Credit to Shawn