It's like the reset button on a computer. Just like the reset button can be summoned to make things right when a computer slows down and crashes, a tiny snippet of music can be summoned to uplift our mood when it needs some uplifting.

Of course, it needn't be a snippet of music. It could be a phone call to a friend, or a walk along the beach, or cooking a nice meal.

But there is always something as simple and as accessible as a snippet of music that can leave a lot of head trash behind and take on a fresh perspective. 

We just need to summon it.