Top Descriptors alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , collab A map with two or more associated mappers. , overlap reading Contains patterns where overlapped objects make determining note order and/or timing difficult. , streams Patterns requiring continuous movement and alternating, typically more than 9 notes. , repetition Features the use of recognizable identical patterns or gameplay elements. , clean Visually uncluttered and organised patterns, often involving few overlaps and equal visual spacing between objects.