An essential Jazz improvisation skill is know the 7th Chords built upon the tones in the Major Scale in all keys–by ear, intellect, eye, and muscle…
Diatonic 7th Chords in the Key of C Major…

Diatonic 7th Chords in All Major Keys
Using your knowledge of the major scales and chord structure (and your ears of course), play the pattern above in all keys around the cycle of dominants: C, F, Bb, Eb, Ab, Db, Gb, B, E, A, D, G…
Would anyone like Frank to add the music notation for each of the following? (comment below)
Diatonic 7th Chords in C Major
Diatonic 7th Chords in F Major
Diatonic 7th Chords in Bb Major
Diatonic 7th Chords in Eb Major
Diatonic 7th Chords in Ab Major
Diatonic 7th Chords in Db Major
Diatonic 7th Chords in Gb Major
Diatonic 7th Chords in B Major
Diatonic 7th Chords in E Major
Diatonic 7th Chords in A Major
Diatonic 7th Chords in D Major
Diatonic 7th Chords in G Major
Learning by doing in this manner will build an enormous scale and chord vocabulary that integrates theory, visio-spatial keyboard awareness, ear training, technique, and rhythm… and lays a solid foundation for fluent improvisation.
incredible work Frank, thank you
Thanks for digging my work, Mister Jimmy!