Here is the scale of C major in 7th chords. Remember the order and chord Quality (maj7, min7, dom7, m7b5) of each one!
I Cmaj7
II Dmin7
III Emin7
IV Fmaj7
V G7 (dominant 7)
VI Amin7
VII Bmin7 b5 (or B half diminished)
Memeorize the sequence on all string sets. This way, you will be able to play ANY chord sequence possible in the Jazz, Funk, Soul, Pop, Blues realms!
Here is the easiest one first, on strings 5432 – the Inner String set
Cmaj, Dmin7, Emin7, Fmaj7, G7, Amin7, Bmin7b5
Here are the ones on strings 6543 – The Lower string set. The notes are exactly the same!
Cmaj, Dmin7, Emin7, Fmaj7, G7, Amin7, Bmin7b5
Now strings 4321 – Upper string set. These are an octave higher but exactly the same notes!
Cmaj, Dmin7, Emin7, Fmaj7, G7, Amin7, Bmin7b5
Now, the ones on strings 6543 (lower set) are good, but these are often used instead – Strings 6432. They give a less muddy sound! At the end, I show the classic Am7 to D9 movement (a II V progression)
Cmaj, Dmin7, Emin7, Fmaj7, G7, Amin7, Bmin7b5
Now you are equipped to play II V I , I VI II V and a multitude of chord sequences!
You can try doing it in different keys! Say Fmaj?
Fmaj7, Gmin7, Amin7, Bbmaj7, C7, Dm7, Em7b5
Same sequence! Different notes!!
Order is always the same…
I maj7
II min7
III min7
IV maj7
V 7
VI min7
VII min7b5