No definitions found for 'lower frequencies'
Perhaps one of these:
lower pharyngeals,
lower burrell,
l roboris,
liar paradox,
lower pair,
lower burrell, pa,
lyrebird,
la riviera,
lauriferous,
lower brule,
lower berth,
lower brule, sd,
larboard,
lyre bird,
lyriferous,
la riviera, ca