https://banjobenclark.com/lessons/improvising-blues-part-1-the-7th-chord-shape-banjo-intermediate
I’ve got the banjo blues, yes I do… I’ve got the banjo blues, you can TOO! In this lesson on improvising blues, we’ll put a simple dominant 7th chord shape to use—and you’ll see the huge amount of possibilities it opens up to explore. If you’ve ever felt out of place improvising on slower blues-style songs like I Am a Pilgrim or Foggy Mountain Special, this lesson’s for you!