In an earlier post, I explained how to try improvisation using the 12-bar blues. The left hand plays open chords, following a prescribed pattern. Then the right hand can join in, copying the left hand notes. (See my first blog on the subject.)
1) Play hands together, but vary the rhythm of the right hand open chords.
2) Continue #1 and add thirds to all right hand chords. For example, CM would be played as C-E-G.
3) Continue #1 and 2 and add seconds to all right hand chords. For example, CM would be played as C-D-E-G.
4) Continue #1, 2, and 3 using these same notes, but play the right hand notes one at a time, as a melody.
And wait! There’s more. . . (to be continued).