As a professional jazz trumpet player, my Dad had a pocket trumpet in his car glove box.
Stuck in traffic, Dad got out and serenaded motorists. People loved it.
During a family vacation, Dad stopped and serenaded cows. The cows ambled over to the fence, looking at Dad.
We kids laughed ourselves silly!
This guy's out-of-tune playing is painful to my ears. He's a beginner.