Brigid, a young musician, discovers an enchanted harp that plays the songs of the universe. With each strum, she is transported to different worlds where she learns the science behind sound waves. Guided by Ciarán, a sound sorcerer, Brigid explores how sound travels, vibrates, and shapes matter. Along the way, she meets creatures that communicate through song, and learns how sound influences emotions and the environment. Full of wonder, adventure, and science, "Brigid and the Song of Sound Waves" teaches children the magic of sound and music, sparking their curiosity about the world around them.