Listen to Rainy Day Focus: Harnessing the Power of Nature for Productivity online. Rainy Day Focus: Harnessing the Power of Nature for Productivity is an Instrumental language song and is sung by Celia Callahan. Rainy Day Focus: Harnessing the Power of Nature for Productivity, from the album Tranquil Twilight - Calming Sounds for Inner Peace: ASMR Nature Rain, was released in the year 2024. The duration of the song is 2:07. Download Instrumental songs online from JioSaavn.