Koshi is a traditional Japanese instrument, often classified as a type of mouth organ or free reed instrument. It consists of a bamboo frame with multiple pipes, each producing a different pitch when air is blown through them. Koshi is commonly used in various forms of music, including folk and spiritual genres, and is appreciated for its soothing and melodic sound. The instrument is often associated with Japanese culture and is sometimes used in meditation practices. Its gentle tones can create a calming atmosphere, making it popular in wellness and relaxation settings. Koshi is also known for its portability, allowing musicians to easily carry it for performances or personal enjoyment.