Sound itself has certain effects on our brain that can be beneficial. Certain sound frequencies can affect the neurochemicals in the brain. This means that different types of sounds and tones will affect your overall mood and perception. If you’ve ever been in a bad mood, only to cheer yourself up with your favorite song, you’ve experienced this effect. Songs and instruments can change how we see the world at any given moment. Playing music can also positively affect our brains. Because there’s so much information to process, the brain typically improves its multitasking capabilities. Music therapy has even been used to help patients with Parkinson’s and other motor or sensory disabilities. Playing music can help strengthen the connections between neurons that process this kind of information.