Top Descriptors improvisation Uses patterns that do not correspond to sounds in the music, often using hitsounds to add sounds in. , avant-garde Employs boundary-pushing and experimental philosophies to map design, often foregoing gameplay and aesthetic conventions to extreme measures. , cutstreams Streams in which the spacing of certain notes is much larger than the rest of the stream. , visually dense Contains patterns where the amount of visible notes makes determining note order and/or timing difficult. , messy Visually chaotic and intentionally disorganised patterns, often involving many overlaps and unequal visual spacing between objects. , finger control Uses complex applications of rhythms in order to test the player's tapping ability. , difficulty spike Contains a sudden and significant increase in challenge within the map's gameplay. , flow aim Patterns with fully continuous cursor movement, usually due to a combination of wide angles and little time between objects. , streams Patterns requiring continuous movement and alternating, typically more than 9 notes. , freeform An unrestrained and loose approach towards visual structure.