iTunes codes are released on the Internet continuously over time, and many of these iTunes codes fall through the cracks and make it into the hands of people that can give them away for free, a small price, or a fraction of the cost of what the music would cost in the first place. iTunes codes are special codes that can be redeemed for music, movies, television shows, and anything else that is sold through the iTunes store.

Sometimes companies give away large batches of iTunes codes for special promotions, and they're never used by the people they're intended to be allocated to. Other times, people receive free iTunes codes, and they have no need, desire, or requirement to use them. In that case, they sometimes post them on the Internet for free or sell them to an iTunes code database company that sells them for a fee to other people or gives them away for free as a special bundle for filling out surveys or doing something else that requires a little labor.

One of the primary ways that people get free iTunes codes nowadays is by filling out surveys. In the early days when iTunes wasn't that popular, people wouldn't offer free iTunes codes for filling out surveys but now companies realize it can be just as tantalizing to give away free iTunes codes for people to fill out surveys as it is for people to distribute cash for filling out surveys. Major corporations need focus groups composed of as little as five people and as many as 1,000 people to evaluate their products before they bring them to market. If they can get a good read from people, then they can make a lot of money and much more than they would have by bringing their products to market without official testing. That is why it is in the company's best interest to give away a small sample of free iTunes codes before bringing their products to market.

You can pay for iTunes songs with free points, codes, and gift cards, and that is the preferred way to pay nowadays with so many people giving up on spending cash for songs and instead going the free route to better songs; companies are more than happy to give away iTunes codes for free if the users can benefit the company in reverse with a whole host of survey set answers that helps them market their products more effectively.