Phil is playing some great old tunes on the baritone ukulele. Each is played with focus and care and all are gems. His playing really shows off what can be done on a baritone ukulele. If you enjoy these then you'll be glad to know there are about 8 more for your listening pleasure on his YouTube page, link.
Phil also has some more arrangements and a couple of video lessons that you might find interesting. One of my favorites is "Linus & Lucy."