Listen to Concentrate with Rain in Chicago's Millennium Park for a Productive Day online. Concentrate with Rain in Chicago's Millennium Park for a Productive Day is an Instrumental language song and is sung by Jefferson Hamilton. Concentrate with Rain in Chicago's Millennium Park for a Productive Day, from the album Rainfall in a Hidden Rainforest Sanctuary for Meditation, Sleep, and Inner Peace, was released in the year 2024. The duration of the song is 2:02. Download Instrumental songs online from JioSaavn.