Listen to Calm Rainy Koi Pond Sounds for a Tranquil Mind (Instrumental) online. Calm Rainy Koi Pond Sounds for a Tranquil Mind (Instrumental) is an Instrumental language song and is sung by HarmonicLab Music. Calm Rainy Koi Pond Sounds for a Tranquil Mind (Instrumental), from the album Mystic Rain: Ambient Nature Sounds for Meditation and Sleep, was released in the year 2024. The duration of the song is 1:01. Download Instrumental songs online from JioSaavn.