Why do I like playing music? Well I just read some of this article and can totally relate--
it's that feeling of community, and of bringing joy to people.
"The 19th century sociologist Emile Durkheim coined the term “collective effervescence,” which sounds like a denture cleaner but is really about the heightened state of social energy, a sense of sacredness and connection we feel during shared experiences like rituals and celebrations. Recent studies have found that listening to live music with others fosters unity and joy, leading to long-lasting improvements in well-being."
https://www.outsideonline.com/culture/why-we-love-music-festivals