What is the form of the 12-bar blues?
The most common musical form of blues is the 12-bar blues. ... A 12-bar blues is divided into three four-bar segments. A standard blues progression, or sequence of notes, typically features three chords based on the first (written as I), fourth (IV), and fifth (V) notes of an eight-note scale.
What scales can I use over A 12-bar blues?
A minor pentatonic scale with extra blues notes
The minor pentatonic scale is a fantastic scale to jam over a 12-bar blues with, but by adding a few more notes you can infuse your blues with the slick sounds of virtuoso blues-meisters such as Joe Bonamassa, Robben Ford and more.