New excavations at a peripheral site of the Indus Valley Civilization have yielded three intact flutes made of gazelle bone and inlaid with lapis lazuli. These musical instruments were found alongside specialized ritual basins containing traces of aromatic resins, pointing to the specific logistics of ancient "Monsoon-Calling" festivals used to ensure the arrival of summer rains.
The flutes are bored with precise acoustic holes designed to produce a low-frequency hum, which archaeologists believe was meant to imitate the sound of distant thunder. This find suggests that prehistoric communities used soundscapes as a central component of their religious festivals, creating immersive auditory experiences to petition deities for seasonal water.