Single track affirmations are single affirmations repeated multiple times in both the first and second person. They are downloaded the same way you download a single song on iTunes.
Currently, there are more than 400 unique affirmations in over 650 versions available. This page displays the 16 main categories. Each main category has subcategories within it. For instance, the Sports category has football, baseball, tennis, etc.
Simply click on the category of your choice to locate subcategories or specific affirmations. You can also use the keyword search function at the top of the page to locate an affirmation.