Do I have to redeem all my free Mp3s at the same time?

If you have a monthly subscription and you are past the 7-day free trial period, you can redeem your 3 free Mp3s anytime during the 30 day cycle.

If you have an annual subscription and you are past the 7-day free trial period, you can redeem your 36 free Mp3s anytime during the annual subscription period.