There's no one certain type of music I listen to to "calm" myself, but there is one song that is my go-to when the world is overwhelming and I'm lost and anxious and can't shake the cloud over me. That song is No Woman, No Cry by Bob Marley & the Wailers.
No matter how many fucking times I hear it, it reminds me that if a human is capable of creating something so magical, then there is some beauty to this planet no matter how daunting things seem at that particular moment.