Blues level 3 is using more of a riff approach to the 12 Bar Blues. Also it's using a 12/8 time signature, which is 4 beats of 3 eighth notes per bar, or the equivalent of that. The bass shows this rhythm in groups of a quarter note and an eighth note, 4 times in each bar. Speed control is in the gear on the lower right of the screen.  Start with the video session, when comfortable move to the sheet music and audio clip.

Click on the image to download a printable version.