https://www.yelp.com/search?find_desc=Gospel+Choir&find_loc=Chicago%2C+IL
https://www.cbsnews.com/chicago/news/best-choirs-in-chicago-2/
https://interactive.wttw.com/playlist/2018/06/01/chicago-vatican-and-mecca-gospel-music
The Sweet Sounds and Sights of Chicago Gospel Music History and Architecture
Thumb & Four Fingers 