Listen to Concentrate with Rain Sounds for Improved Productivity online. Concentrate with Rain Sounds for Improved Productivity is an Instrumental language song and is sung by Celia Callahan. Concentrate with Rain Sounds for Improved Productivity, from the album Gentle Glimmer - Soft Music for Sleep and Slumber: ASMR Nature Rain, was released in the year 2024. The duration of the song is 2:04. Download Instrumental songs online from JioSaavn.