There are many ways to sound fast in your bass playing but what I would like
to share is to make use of the open hammer-on.
You may like to use your thumb (slap) to play this exercise.
----------------------------------------
-----------------0-5-7-----------------
---------0-5-7----------0-5-7---------
-0-5-7-------------------------0-5-7--
The above is a simple Em Pentatonic Scale.
Use your thumb to strike the string, than you can use your left index finger to fret the note followed by the hammer-on using your ring finger.
Have fun.
