I have been learning a blues rock shuffle 1-3-5-6 ( 8 bar with my left hand It sounds really rock & roll and doing a 1- 4 -5-1 chords progression in the key of C , Its sounds nice but i still find it hard to really using both hands doing different things when I try to improvise with my right hand It all falls apart. I have also only just started to learn the C blues scale , I am just wondering for every chord your play in the progression do you have to use that scale key in the blues scale to improvise , I would like to do more improvising and use the blues scales to play some riffs
You can use the notes of same root ( in this case C ) blues scale to to play the roots of the I, IV and V. Example :
Right hand : C-G-Bb F-C-Eb G-D-F
Left Hand : C-E-G-A F-A-C-D G-B-D-E
Those notes in the right hand are also notes found in the blues scales of they keys of I IV V
Just keep everything as simple and square on the beat for now. Then later try doing a tremelo with the notes or add some passing notes - Once you get the rhythm and groove down and feel confidence about doing riffs , then you may want to focus on not playing too many notes. One more thing dont forget that I7, IV7, and V7 can enhance the sound of the blues scale.
I dont know if that is what you are asking for but I've typed it just in case.