Exploration of a newly identified cave system in the Cuchumatanes mountains of Guatemala has led to the discovery of a unique 1,500-year-old Maya musical instrument. The artifact is a lithophone, consisting of a series of tuned limestone slats designed to be struck with wooden mallets. The slats were found arranged on a cedar-wood frame that had partially petrified over centuries, and acoustic tests show they still produce clear, resonant tones corresponding to a specific pentatonic scale.
The cave, which appears to have been used exclusively for musical rituals, also contained carbonized remains of copal incense and fragments of ceramic flutes. Hieroglyphic inscriptions on the cave walls describe the instrument as a "voice of the mountain spirits," used to invoke rain during periods of severe drought. This find offers a rare sensory connection to the performance arts and spiritual soundscapes of the Classic Maya period.