Monkeys with siren screeches

There once was a boy with short brown hair who lived his life from day to day. Though from those day to day phases he felt confusing emotions that he could not explain. These emotions often tore at his soul and he often had trouble keeping track of his own thoughts. He sought refuge from all this with three monkeys. Each monkey had their own instrument. One with a banjo, one with a bass and the other with a saxophone. These monkeys played tunes to soothe the boy's soul and over time he sought more from the monkeys. He wanted them to rid the boy of all his troubles. His every fear and problem to dissipate with the sound of the monkey's tune. So they presented him with a box with a latch and told the boy that every one of his problems would disintegrate with the opening of the box. What's in the box? Only opening it will reveal it's inner treasures...