I’m going to use the key of F for this because I think a lot of piano players like blues in F because it lays down on the keyboard real nice. Below is a very standard blues progression that everyone has played. This is the take off point for the other variations to follow.
F7 | Bb7 | F7 | F7 | Bb7 | Bb7 | F7 | F7 | C7 | Bb7 | F7 | C7 | (each chord is played one measure each)
Here is a variation that jazz players might play.
F7 | Bb7| F7 | F7 | Bb7 | Bb7 | F7 | D7 | G7 | C7 | F7 D7 | G7 C7 | (note: the last 2 measures are 2 chords in one bar i.e. 2 beats for each chord).
Here’s another one to check out. This one gets a little more jazzy because of the chord substitutions used extensivley.
F7 | Gb7 | F7 | Cm7 B7 | Bb7 | B dim 7 | F7 E7 | Eb7 D7 | Gm7 Db7 | C7 | F7 D7 | Db7 C7 |
This on coming up is referred to as Parker Blues because it’s the chord progression that Charlie Parker used for the tune “Blues for Alice”
F6 | Em7b5 A7 | Dm7 G7 | Cm7 F7 | Bb7 | Bbm7 Eb7 | Am7 D7 | Abm7 Db7 | Gm7 | C7 | F6 D7 | Gm7 C7| (repeat)
Comparing the Parker blues to the Jazzy progression you’ll notice that both progressions start with a 1 chord and have a 4 chord in bar #5 and a 2 chord in bar #9 both are essentially the same but the Parker blues utilizes the 2-5 progressions down in whole steps to get from the original 1 chord to the 4 chord in bar #5 and the rest of the chords move down in half steps to get from the 4 to the 2 chord in bar #9.
We can also mix and match these progressions. You might want to take the first 4 measures of the Parker blues then add the other progressions from the earlier jazz blues to make a completely new set of chords, then all you have to do is add a melody on top and you have a new Blues tune.