Techniques are described for managing various types of content in various ways, such as based on voice commands or other voice-based control instructions provided by a user. In some situations, at least some of the content being managed includes content of a variety of types, such as music and other audio information, photos, images, non-television video information, videogames, Internet Web pages and other data, etc., which may be managed via the voice controls in a variety of ways, such as to allow a user to locate and identify content of potential interest, to schedule recordings of selected content, to manage previously recorded content (e.g., to play or delete the content), to control live television, etc. This abstract is provided to comply with rules requiring it, and is submitted with the intention that it will not be used to interpret or limit the scope or meaning of the claims.