The phrase jazz dance has a special meaning for professionals who dance to jazz music (they use it to describe non-tap body movement); and another meaning for studios coast to coast teaching 'Modern Jazz Dance' (a blend of Euro-American styles that owes little to jazz and less to jazz rhythms). However, we are dealing here with what may eventually be referred to as jazz dance, and we could not think of a more suitable title. The characteristic that distinguishes American vernacular dance--as does jazz music--is swing, which can be heard, felt, and seen, but defined only with great difficulty. . . . --from the Introduction