Same as base beer style. The added grain will lend a particular character, although with some grains the beer will simply seem a bit more grainy or nutty. The alternative grain should provide the major aroma profile for this beer.
Same as base beer style, although some additional haze may be noticeable.
Same as base beer style. The additional grain should be noticeable in flavor, although it may not be necessarily identifiable. However, the alternative grain should provide the major flavor profile for this beer. Different grains have different characters; the additional grain should enhance the flavor of the base beer. Many will add an additional grainy, bready, or nutty flavor.
Same as the base beer, although many additional grains will tend to increase the body (oats, rye) and increase the viscosity, while some may decrease the body (GF grains) resulting in thinness.
A base beer enhanced by or featuring the character of additional grain or grains. The specific character depends greatly on the character of the added grains.