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Exhaust gases are generated from the combustion chamber after the air-fuel mixture is burnt through the Power Stroke. These exhaust gases are "thrown out" in the combustion chamber through the Exhaust Stroke. The exhaust gases, including NOx, move through the Exhaust Valve, the Exhaust Passages and finally towards the atmosphere over the Exhaust System. Still, there's such way of psychotherapy like a music therapy, based mainly on the end results of music of Mozart. For a long time whatever the researches linked to the treatment of tinnitus, scholars study the Mozart's music of being a healing factor for the treatment of various psychosomatic disorders.