Listen to Serotonin Music That Greets The Morning Sunlight (Rain Sound) online. Serotonin Music That Greets The Morning Sunlight (Rain Sound) is an Instrumental language song and is sung by Relaxing Mode. Serotonin Music That Greets The Morning Sunlight (Rain Sound), from the album Collection Of Gentle And Sentimental Piano Music 12, was released in the year 2025. The duration of the song is 4:00. Download Instrumental songs online from JioSaavn.