õhkõõrused
õhkõõrused are a type of Estonian folk instrument that falls into the category of aerophones. The name roughly translates to "air holes" or "air cavities," referring to their construction. These instruments are traditionally made from hollowed-out wood or animal horns, with varying numbers of finger holes bored into the body. The sound is produced by blowing air across an embouchure or through a reed, causing the air column within the instrument to vibrate.
The specific design and sound of õhkõõrused can vary significantly depending on the region and the maker.