Abstract: For visual user-presentation of a compilation system for multiple audio and/or visual items each item is associated with various attributes that each express a category, a value, or a label, and through selection among the items produces a compiled subset of items. In particular, the presentation is multidimensional in parallel over the various attributes, that each allow said selection therein on a uniform level. Through each selection presentation of items that discord with the actual selection is suppressed, so that each selection diminishes the multidimensionality of said presentation. Furthermore, a selection of effectivity controls is displayed.