Example1 Blues chorus #1 ...CONTINUED
Here, we see both melodic and rhythmic thematic development by repeating the same E7 phrase down a tone for D7. Again, make a note of the chord tones being targeted throughout.
These final two bars demonstrate that you don’t need to nail every chord tone or play the entire scale in order to articulate each chord. Here, it’s a mixture of A Mixolydian and A minor Blues scale over the A7 chord,
Ewhereas it’s just the root (E) that’s required to bring out the sound of the E7 chord. Generally, this ‘rootsy’ approach is more typical of the blues than targeting prettier notes such as the major 3rd: try it here by targeting the G# note over the E7 instead; if you’re not careful, it can sound too sweet and corny. The important message here is that it’s important to exercise good taste rather than just glibly apply theory and assume that it’ll always sound good.