Listen to Effective Working Music online. Effective Working Music is an Unknown language song and is sung by Improve Concentration Music Oasis. Effective Working Music, from the album New Age for Concentration – The Best Study Music for Brain Power, Improve Concentration, Exam Study, Focus on Learning, Enhance Mmemory, was released in the year 2015. The duration of the song is 5:38. Download Unknown songs online from JioSaavn.