In spite of its minimalistic appearance, is a most intricate light work which, in its scope and originality, defines its own aesthetic. The number of persons involved may vary. Although thirteen has been suggested as the optimum number, two would usually be referred to as a working couple (in any combination of sexes.) Within the community, many believe that a number larger than thirteen is unwieldy, citing unwieldy group dynamics and an unfair burden on the leadership. When this has grown too large to be manageable, it may split, or "hive". Most often utilizing electronic instruments or electronic processing of acoustic instruments, they typically create dense, unmoving harmonies and a stilled or "hovering" sense of time.