Book excerpt: How African American Christian music influenced Western cultural history and forever changed the world of song. What do blues, jazz, soul, R&B, rock'n'roll, folk, country, rock, pop and hip hop have in common? Their origin, their fire! Holy Blues (Gospel Blues) is the source of all the roots music we love. The history of gospel music is 400 years old; its spirit even much older, and without it we simply would not be able to be enchanted by soulful music today. Reason enough to trace this good spirit, Holy Spirit. The award-winning Swiss musician and book author Richard Koechli embarks on an adventurous journey through American cultural history and shows with countless concrete examples how high the influence of faith on the music and its producers has been throughout the centuries, how decisive and mysterious the divine dimension shapes the music at every moment. Koechli does this in a double package: as a book author with a soul stirring history trip, and as a blues artist with very personal interpretations of timeless Holy Blues songs (free download).