Systems and methods are described for retrieval and output of content in a way that addresses concerns with storing multiple copies or versions of a piece of content. The piece of content may have associated computer instructions that allow the client to access alternate portions of the piece of content during consumption. This allows the content provider to store a single copy of the complete piece of content while enabling consumers to access alternate audio or video portions of the content. A new playback architecture may execute instructions associated with a piece of content. Instructions associated with a piece of content may directly affect consumption by the consumer client and may be dependent upon user preferences or interests.