Very nice cut. Bellson was one of the greats-- not quite up to the greatest, Buddy Rich, but I'd put him in the top 5, certainly in the 1940s and '50s.
I grew up in Pittsburgh. In the '50s there was a drum shop right in the center of downtown, which I frequented. One afternoon I went in, and as I started up the stairs to get to the main drum shop, I heard some mesmerizing solo jazz drumming. When I entered the room, there was Louis Bellson trading 4s with a real good local jazz drummer. They must have played for an hour, and I was riveted.
That was the first time I ever saw a drummer use two bass drums, which I think Louie invented. Several years later I took a cue from him and started using two bass drums as well. Bellson was a fantastic personality and a great drummer.