In the most commonly used form of chants, each member of the group repeats the entire verse. However, the "Spinning Mantra" differs in that one member intones the first line of the chant, the next person, the second line, and so on. One note can be used throughout, with the same syllables stressed in each line.
Another variant is to start the Spinning Mantra off, and have the members of the group wander around, stopping briefly in front of each other to chant their lines. This can be very disorienting, but is very effective if performed with a large group.
This ritual combined with this chant can be very powerful. For best results each participant should have a copy of the chant and a chance to practice their lines. The idea is to repeat the chant over and over allowing the energy to build.
From: The Magical Use of Voice and various other sources