Scientists have begun analysing the responses of 250 people who took part in the study into the effects of infrasound, carried out at Liverpool's Metropolitan Cathedral last September.
They showed the audience's emotions intensified as the inaudible sound vibrations, too low for the human ear to perceive, were blasted out during a 50-minute piano recital.
Those feeling uncomfortable when the concert began, found their mood turning to anger.
Others, who had felt happy, started to notice sensations of joy.

icLiverpool - Soundless Concert Stirs The Emotions