1. choose a common chord progression from  Common Chord Progressions

2. substitute one or more chords into 9, 11, 13s using table on bottom of p. 2 and top of p. 3 of  Modern Harmony Simplified (which shows you where the diatonic 9, 11 & 13s do and don’t sound good) of

3.  find an appropriate voicing for the chord(s) you wish to substitute using one of these two resources:

bottom of p. 3 to end of Guide to Advanced Chords or 5th and 6th string root chords.  You may need to consult the

4. play the progression; you may need to consult the Harmonized Scale Chart  to get the type of category of chord to embellish (ex: I and IV are maj7, II and III and VI are minor7, V is 7, and VII is m7b5)

5. transpose original triad progression up a minor 3rd (ex: if written in C, now you are in Eb)

5. play it in new key with triad chords

6. rewrite it in new key with the appropriate 7th chords

7. play it in new key with 7th chords