an elderly bell ringer pulls the heavy rope with both hands as the enormous bronze bell swings overhead. The bell releases a deep, resonant tone that fills the entire cathedral space. Sound waves visually ripple outward from the bell in expanding circles throughout the stone chamber. The mournful sound echoes off the tall walls and pillars, creating layers of reverberating tones. Parishioners below bow their heads solemnly as the profound, sorrowful sound washes over them. Small birds near the windows flutter away from the powerful acoustic waves. a sound that has deep reverberant quality and is both loud and mournful