The guitar is used worldwide. It is one of the most popular music instruments because it is not expensive, not heavy and partable.
People can joy singing with a guitar at the beach, in the camp or on the bus while travelling. To play guitar is not hard and can play
a wide variety of musical genres. So the guitar is common found in ordinary families.
A brain is the most important part of human. It performs many functions such as memorize, calculate, process to control other parts of the body.
To improve brain is worth to invest. While children grow, their brains grow. Exercise makes children grow fast and strong. Brain training is like exercise.
It makes brains grow powerful. Children with powerful brains have high potential to succeed in study and work.