iTunes LP (itlp) Â and iTunes Extras (ite) are interactive experiences created to accompany music and movies. iTunes LP lets listeners hear an album and view lyrics, liner notes, band photos, performance videos, and more.
With iTunes Extras, viewers can see cast interviews, exclusive clips, behind-the-scenes footage, and photo galleries along with the movie.
Tunekit is the package from Apple that enables the production of a set of rich media interactions around music in iTunes and Apple TV.
By showing the bundle in Finder (right click and Show Package Contents) you see this
The bundle breaks down with the following structure.
Stores audio files used in the iTunes Extras, such as a short music excerpt that provides background audio that loops.
Stores the CSS files for each View. The CSS files control the positioning of buttons, text, and images on the page. It also includes some interactive elements and animations.
Stores all the images used in the iTunes LP or iTunes Extras. In this example template, each view has its own images folder.
The page that opens when the user starts an iTunes LP or iTunes Extras. Often called the Home page.
The icon for the iTunes LP or iTunes Extras. Also sometimes referred to as album cover art or film poster art. The format should be either PNG or JPG without the file extension.
The iTunesArtwork file is automatically generated at the time of purchase, so there is no need to author this file except for testing purposes. It must be removed prior to submitting to the iTunes Store.
Describes the metadata for displaying the iTunes LP or iTunes Extras in iTunes. Metadata includes things like description, genre, copyright year, artist names, and so on. This file is automatically generated at the time of purchase, so there’s also no need to author this file except for testing purposes.
The manifest is an XML file that must live in the top level folder of the iTunes Extras or iTunes LP; that is, it must be a sibling of the main index.html file. The purposes of the manifest are to:
â – identify the version of the iTunes LP or iTunes Extras
â – call out what platforms it is compatible with
â – identify any items in the userâ€™s iTunes Library that are to be playable via the user interface of the iTunes LP or iTunes Extras
The videos folder stores bonus videos, such as deleted scenes and behind-the-scenes interviews, as well as bonus audio tracks (with the exception of background audio which needs to live in the â€œaudioâ€ folder). The main video asset or main album asset are not stored in this folder.
Contains sounds for your use. These sounds can be used to provide audio feedback as the user navigates using the Apple TV remote. See the TuneKit documentation for how to use them.
For more details and sample files, and detailed pdf with instructions and the tunkit api go here to Apple.