"Capour" is a shortened version of a word that doesn't exist - "Capourosity". My wife's father made it up a long time ago. I define capourosity as a feeling of contentment, happiness, and overall well-being, and keeping a positive outlook on life. I think it's a good way to look at life.
My wife's father used to say to my wife when she was a child, if she looked sad or unhappy, "How's your capourosity today?"
I feel it's a good name for my YouTube channel since music makes one happy and gives a feeling of well-being.