{HEAD ~ One or more sonic speakers} disposed below or coincident to {TAIL ~ the fluid based center} generate fluid sound waves 
disposed below
{ HEAD ~ One or more sonic speakers } disposed below or coincident to { TAIL ~ the fluid based center } generate fluid sound waves
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH