If we think of the song as living in the key of D Major, then the A13 chord functions as the dominant V chord. In this case, we never actually hear the I chord in the song, and the progression ...

We've worked all four chords into a simple strummed sequence for you, but we recommend experimenting with using them in your own chord progressions ... all you need for a 12-bar blues improv in the ...

As bass players we naturally have to know our chords, and ideally a fair bit about harmony and chord progressions in general, ...