Listen to Endless Exploration: Rain for Curiosity (Instrumental Instrumental) online. Endless Exploration: Rain for Curiosity (Instrumental Instrumental) is an Instrumental language song and is sung by HarmonicLab Music. Endless Exploration: Rain for Curiosity (Instrumental Instrumental), from the album Rainfall Dreams: Nature's Soothing Sounds for Sleep, was released in the year 2024. The duration of the song is 1:13. Download Instrumental songs online from JioSaavn.