In a Mixed-Aged setting the whole family learns how to be musical together. Research shows that children learn best in the early years in these informal groupings where at one time a child may be among the youngest and at another time among the oldest. There are important benefits to both. Music Together^® is mostly an adult/child interaction and not a child/child one. The children are all in "primary music development" (regardless of their age) and all learn best together.