my gift card only added money for apps


Android Question

I have never bought anything out of the android market but for Christmas I got 2 $50 cards. I added them and then tried to buy an album the next day and after all this research I realized I could only buy apps and games. I didn't think that each section would need all different cards .I figured that is was like the apple store and I could buy anything with one card. so is there any way to transfer that money to the music store instead?