Top Descriptors precision Colloquial term for maps which require fine, precise movement to aim correctly. Typically refers to maps with circle sizes above and including 6. , featured artist Features song(s) composed by artists in osu!’s Featured Artist listing , reading Tests a player's reading skill, i.e. patterns that obfuscate note order and/or timing. , custom song Maps a song made specifically for the map. This includes songs created for a mapping contest which the map participated in.