12 bar minor blues (I'm always surprised how few people know how to play this correctly)
|C-7...|F9...|C-7...|....|
|F-7...|....|C-7...|....|
|Ab13...|G7#5...|C-7...|D-7b5.G7#5.||
The last 6 measures make for a good funk progression.
1 more Blues for ya, here's the changes to the famous blues tune "Night Life", sort of a variation to the 8 bar blues I posted earlier, I like this one.
|D...|D7...|G7...|G-...|
|D7.B-.|E-7b5.A7b9.|D7.G7.|D7.A7||