Top Descriptors visually dense Contains patterns where the amount of visible notes makes determining note order and/or timing difficult. , old-style revival Emulates a style closely associated with early mapping, typically to pay homage or invoke nostalgia. , grid snap Objects are placed along a square grid, typically using osu!'s in-built grid snap feature. , slidershapes Uses a large variety of slider designs. , reading Tests a player's reading skill, i.e. patterns that obfuscate note order and/or timing. , precision Colloquial term for maps which require fine, precise movement to aim correctly. Typically refers to maps with circle sizes above and including 6. , slider tech Tests uncommon skills involving sliders, such as heavy use of kicksliders or aim on complex slidershapes. , 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.