Top Descriptors featured artist Features song(s) composed by artists in osu!’s Featured Artist listing , alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , tournament custom A custom map for a playing tournament. , finger control Uses complex applications of rhythms in order to test the player's tapping ability. , complex snap divisors Uses mixed or unusual snap divisors in order to test the player's tapping ability. , bursts Patterns requiring continuous movement and alternating, typically 9 notes or less. , tech Tests uncommon skills. , custom song Maps a song made specifically for the map. This includes songs created for a mapping contest which the map participated in. , collab A map with two or more associated mappers.