Rebellion Record: a Diary of American Events: Poetry and Incidents., Volume 7.
Frank Moore, Ed.

[22] As the song goes on the enthusiasm rises. They sing louder and stronger. The one giving the recitative leads off with more vigor, and the chorus rolls with an increasing volume. They beat time at first with their feet, then with their hands. William cannot sit still. He rises, begins a shuffle with his feet, jerking his arms. Ann, a short, thick-set, pure-blooded black woman, wearing a checked gingham dress, and an apron which was once a window-curtain, can no longer keep her seat. She claps her hands, makes a short, quick jerk of her body on the unaccented part of the measure, keeping exact time. Catharine and Sancho catch the inspiration. We push the centretable aside to give them room. They go round in a circle, singing, shuffling, jerking, shouting louder and louder. Those upon the seats respond more vigorously, keeping time with feet and hands. William seems in a trance; his eyes are fixed, yet he goes on into a double-shuffle. Every joint in his body seems to be hung on wires. Feet, legs, arms, head, body, jerk like a dancing dandy Jack. Sancho enters into the praise with his whole heart, clasping his hands, looking upward and outward upon the crowd as if they were his children and he a patriarch. His countenance beams with joy. He is all but carried away with the excitement of the moment. So it goes on till nature is exhausted. When the meeting breaks up, the singers go through the ceremony of shaking hands all round, keeping time to the tune, “There's a meeting here tonight.”