1. Apparatus for finding and acting-upon compositions that contain a sound component, the apparatus comprising: one or more of electronic-circuitry and/or or processer(s) that: obtain or provide, an ordering of a plurality of sound-segments: wherein each sound-segment is associated with a composition wherein at least a portion of said sound-segments are recognition sound-segments; wherein each of said recognition sound-segments include a portion of its associated composition, which is more recognizable to user(s) than a beginning part of its associated composition; obtain or provide, a current-location in said ordering that refers to one of said sound-segments in said ordering; change the current-location in said ordering in response to user navigation action(s); in response to each change to the current-location, play the recognition sound-segment at the current-location in said ordering, in a combination with one or more recognition sound segments that are adjacent or near to the current-location in said ordering; in response to a command-action by the user, perform one or more of: play, add, move, remove, cut, copy, paste, arrange, organize, and/or order, the compostition that is associated with the sound-segment at the current-location.