Frequent travelling here and there allows you to witness different things and events. It is very common nowadays to see musicians playing instruments in busy streets in exchange for for some change. You can opt to give or not. But with the excellent display of talent, you can't resist to share pennies with them.
I am a musician's friend and having said that I know that sometimes it's hard for these talented individuals to put the notes together especially when they are trying to showcase their own composition. This is the reason why I admire musicians around the globe.