Buying music on iTunes with a gift card is a simple two-step process: first, the card to add balance to your Apple account, and then purchase your music . Step 1: Redeem Your Gift Card
: Open the App Store , tap your photo/profile icon at the top, and select Redeem Gift Card or Code . Use your camera to scan the 16-digit code on the back of the card or enter it manually.
: Open the App Store, click your name/sign-in button in the sidebar, and choose Redeem Gift Card .
: Open the iTunes app, click Account in the top menu, select Redeem , and sign in with your Apple ID to enter the code. Step 2: Buy Music
You must add the card's value to your Apple Account balance before you can spend it.