"Music is a secret arithmetical exercise and the person who indulges in it does not realize that he is manipulating numbers." G. W. von Leibnitz Pi lillaby show cases compositions by Royel that reflect the elegant evolution of mathematics as "universal melody"

The melodies of Pi Lullaby reflect the seamless language of "Natural Melody" based on universal numbers found in Nature. It provides a natural educational tool for infants and minds of all ages to relax, listen and learn.