Subscribers get an automatic 20% off when they purchase more than the amount of free Mp3s that come with their subscription.
There’s frequently a coupon posted at the bottom of the home page. You can also sign up for the PianoTrax newsletter. It will always have the current coupons listed. To sign up for the newsletter, see the banner at the bottom of the home page that says "Enter your email" next to "Sign up for the newsletter".