12 Bar Blues Band 4/7 - I'm Losing You
12 Bar Blues Band 5/7
12 Bar Blues Band 3/7 - Old Love
4-7-12 Let's Get It On
Twelve Bar Blues Band 1/2 - Life Is Hard (2014)
12 Bar Blues Band 7/7 - E-mail From Heaven
Twelve Bar Blues Band @ De Bosuil 2010 - I Can Make Everything All Right
4-7-12 Dirty Water
BLUESinWIJK - Twelve Bar Bluesband - I`m losing you
MUSTIQUE BLUES FESTIVAL 2012 - (DANA GILLESPIE - "20*4*7")
Twelve Bar Blues Band - Old Love.
4-7-12 Drift Away
Fun Boogie Blues Style Harmonica Lesson
Bas Kleine and his Harmaniacs 2/7
Twelve Bar Blues Band - The Thrill Is Gone
A Major Open 474 12 Bar Blues
Bluefield Blues Band - Dust My Broom
X-Ray Blues Band 2/4
Ragtime Willie: Yo Yo Blues (Vestige Video Sessions: Vol. I - 4/7)
Microtonal Blues Scales p.2 ["Majorish 4-7" scale]
![Microtonal Blues Scales p.2 ["Majorish 4-7" scale]](https://img.youtube.com/vi/73ejjQ37WLc/0.jpg)