Inspired by Toy Blocks, Blu musical keyboard is a musical instrument for kids which can be played exactly like building blocks. The keyboard design works while re-imagined keys in a modular and remarkably flexible fashion. When children play along with building blocks, they develop shape recognition skill and increase eye-hand coordination. Keeping this in mind, the particular designer started to develop unique musical instrument in which works similar to building blocks toy, but in this case, children understand to understand and also composed songs. Blu musical keyboard also improves children’s sense involving timing and improvisation.