Here's a Blues Chestnut: Stormy Monday

|G7...|C7...|G7.Db7.|G7...|
|C7...|C#o7...|G7.A-7.|B-7.Bb-7.|
|Eb9D9..D9D#9E9|F9...|G7.C7.|G7.D7||

For a cool jazzy sub play E-7 to B-7b5 in replace of G7 in bars 1, 3, and 4.
A-7 to E-7b5 in bars 5 and 6.