These are indeed soothing songs (except the Meredith Brooks, which is suitably rousing.
The Avi Kaplan song harkens back to one of the neglected roots of country music--Old Regular Baptist hymns from Appalachia (originally from Scotland). Here's an example: https://youtu.be/8NEe_k3Di9I
The Kaplan song is authentic and heartfelt--and comforting. 90
I thought I was going to hate the Josh Groban number (because I don't care much for the singer), and I do dislike the video, but the song works well. Not my cup of chamomile, but still decent. 80
Overall, these are inspiring and indeed comforting choices.
In response to your query, here's a song that frequently brings me back from the brink: