jazzing up triad progressions with 7th chords
example 1
purple writing is major scale formula
example 2
example 3
green writing at bottom is minor scale formula
example 4
example 5
| Am | D | G | C |
becomes
| Am7 | D7 | Gmaj7 | Cmaj7 |
Am7 D7 Gmaj7 Cmaj7
x022010 xx0212 320002 x32000
example 6
| Em | G | Am | C |
| Em | G | Am | C |
| Dsus | D | C | % |
| Em | G | Am | C | Em ||
becomes
| Em7 | Gmaj7 | Am7 | Cmaj7 |
| Em7 | Gmaj7 | Am7 | Cmaj7 |
| D7sus | D7 | C | Cmaj7 |
| Em7 | Gmaj7 | Am7 | Cmaj7 | Em7 ||
Em7 Gmaj7 Am7 Cmaj7 D7sus D7
020000 320002 x02010 x32000 xx0213 xx0212
example 7
example 8
example 9
(the original progression in black had 7th chords, and they were stripped away to make it easier to play)