In bluegrass which musical function is filled by the mandolin?

What can one buy from the online Beer Store? Why is rooibos tea healthy? Is it possible to mix red and white wine together? Does diet soda put holes in the brain? What beers come in mini kegs? What does lemon juice do for the human body? What would happen if lemon juice was added to starch gel? Is IPA stronger than regular beer? What is the sanitizer McDonald's uses to clean the beverage lines? What is the best yeast for raspberry wine? What is the world first black tea in history? What is the difference between cognac and scotch in terms of their production processes and flavor profiles? How can I enhance the sweetness in my homemade beer? Is this sentence a comma splice run-on or a fragment sentence- The girl in front of you who appeared to be 19 was attempting to buy beer? How much wine is considered a binge? How much sugar is typically found in fruit? What is a water resources of New Mexico? What instruments are associated with arco? How long after you take vitamins can you drink tea? What does this mean - In the attitude of silence the soul finds the path in a clearer light and what is elusive and deceptive resolves itself into crystal clearness?