One of the things I have taught my kids is you always appreciate musicians, and pay them respect especially at dinner places where musicians finish a song and no one applauds (I played enough gigs where the audience didn't even acknowledge your existence, much less the song you just finished). I trained them from an early age to clap like crazy.
Kathy also has a soft spot for musicians (she married a drummer: and what do you call a drummer without a girlfriend? Homeless.) so when we were in Paris recently, we always tipped the street musicians and occassionally Kathy even joined in a little River Dance treat.
This is by the bridge over the Seine River, behind the Notre Dame Cathedral, and about a block from our rented flat. When I threw three euros in the cup, the accordian player said, "American!" and when my wife started dancing he said, "Crazy Americans!" We took this as a high compliment.
"We are all travelers. From birth to death we travel between the eternities."