Many scientists believe that the use of fire enabled Homo erectus to adapt to new environments by providing light, heat, and protection from dangerous animals. Tending fires probably helped foster social behavior by bringing early humans together into a small area. Fires may have tightened family groups as the families congregated around a fire to protect their young. Homo erectus may have used fire to cook food. Most animals were afraid of fire, so a roaring campfire gave protection to the group or tribe. They no longer had to shelter out of the wind, unless they chose to do so. If their fire went out, they could relight it. They could choose where they camped. On a hot night, if they could find a relatively safe place, a breeze might feel good. Control of fire made moving into colder regions possible, as fire they could count on would provide them with warmth. It also changed the way they prepared food.
These people began to cook their food consistently. Food that is cooked is more secure from disease and much softer to eat. As a result, it would have been easier for the young and the old to survive.
See here for info on the flute.
http://www.uvi.si/eng/slovenia/background-info rmation/neanderthal-flute/