The online music service “Pandora.” This fun new – and free – station targets parents and features music to encourage learning and physical activity Research shows that 90% of a child’s brain develops during the first 5 years of life – a large part of that during the very first year. First 5’s Pandora Station includes not only children’s music but also examples of other ways to engage and stimulate children’s brains — clapping, dancing, singing, humming!