Originally Posted by
Robert
Here is a lesson for using chord tones and arpeggios over a I-IV-I progression (typically the first 4 bars of any blues tune). The lesson also explains that you can pretty much use any of the notes of both the A blues scale and the arpeggios from both the A7 and D7 while improvising over this progression (exception - C# over D7 is a no-no). Hope you find this lesson clear! I could go into more details and ideas on this, but the video turned out to be long enough already.
[Removed youtube video]