Originally Posted by: darickmendes

Is the chord progression in the 12 bar blues is usually the same ?

Yes, it is usually has the I-IV-V chords from a key in a certain order. Anders covers it in Blues level 1.

https://www.guitartricks.com/lesson.php?input=14429&s_id=937

But there are variations occasionally. Like minor blues.

https://www.guitartricks.com/lesson.php?input=14448&s_id=941

Adding a quick change to IV or an additional bVI for dramatic tension.

https://www.guitartricks.com/lesson.php?input=14473

And even a different amount of bars. Like 8 bars.

https://www.guitartricks.com/lesson.php?input=13286&s_id=757

Or 16 bars.

https://www.guitartricks.com/lesson.php?input=17673&s_id=1342

Hope that helps!