Hi Maggie ... While the Seattle Circle has a lot of "hoot" characteristics, song circles also have several definate differances. (as I recall, your late Father was one of the founders of the Seattle Song Circle). A song circle has a strong everybody come, everybody sing atmosphere which is very welcoming and is great for learning new stuff, and making new friends. Also, the "circle" tends to be a rather formal event, where you are certainly encouraged to keep to the circle format. At a hoot, it's usually much more informal and spontaneous. At hoots, a theme of certain songs might evolve, and the singers might jump in, in no particuliar order if they are inclined. Also, at many hoots, you'll find one kind of music in the living room, maybe the bluegrassers are out in the garage, the backyard might be full of the blues players. (and we won't talk about what's going on upstairs)! CHEERS, Bob