More about the dominant thirteenth chord
The dominant 13 is, like the seventh chord, a dominant chord. However, the sound is a bit different, as It's more lush and dreamy. This chord is great for emphasising melody on your accompaniment.
Usually, writing down the 13th, means you can add all extended notes above the perfect fifth, including a minor seventh. Thus, the m7, M9, M13 in this case. Although, you could actually also just play the 13th and not add the ninth.
Make sure you do not mistake this chord with the maj13 chord (or to say it fully: major seventh thirteenth). That chord has a major seventh and sounds very differently!
Usage and play
One way of playing this chord is by using the 13th as a leading melody note in your accompaniment. Typically, you would want it to go from either the perfect fifth to the major sixth and back. Or using it as a passing note between the perfect fifth and the minor seventh.
The 13th chord is used a lot in jazz and blues.
