STEVE INSKEEP, HOST:

Good morning. I'm Steve Inskeep. The cellist Yo-Yo Ma began his Monday performance at Washington's Kennedy Center in a special way. A full house stood as he played Ukraine's national anthem. The same day, he expressed his support with less fanfare. A passing cyclist noticed the musician playing outside the Russian Embassy alone. He was next to a sign that protesters had set up, declaring the street Zelenskyy Way. It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.