YAOSC (Yet Another Old School Clone)
The character is able to engage in some creative act at a professional level. Each separate craft is a skill; sample crafts include blacksmithing, goldsmithing, ship-building, flute-playing, game design, painting, baking, dance, and weaving. Mundane/simple/everyday creations or performances do not usually require checks. However, the player may always choose to check this skill: a check that succeeds by 5 or more will produce a masterwork piece (+1 to relevant rolls when used; increased value in markets or as a performance). A check that succeeds by 10 or more has produced a piece of such exquisite craftsmanship that it is likely to gain magical powers due to a god’s favor, a spirit taking up residence, metaphysical resonance, etc.
Note that linguistic compositions and performances use the Language skill.