...is one of the best words to describe the contents of this recording. The performers are Bobby (sometimes multi-tracked) and 12 singers. The music is basically spontaneous, although there is a consistency to each Circlesong. This consistency is a germ of a musical idea, which Bobby apparently taught to the singers by rote -- one of the main tenets of the music herein is reliance on "oral tradition" as the means of communicating the music from one performer to another.
Speaking in terms of "Western" music (as contrasted with the African background that is obviously an influence), each Circlesong is based on some repeated idea, what could be called a round, or usually more accurately, a "ground bass". The 12 singers (it would be improper to call them either a choir or backup singers here) take the idea and build a structure of sound. Bobby then uses this structure as his jumping-off point, weaving in, out, and around. For American ears, the songs are essentially wordless, so words neither help nor hinder the musical experience.
In all, it is a tour de force of ensemble singing, and highly entertaining