Remember that the bass line is sacred. If it doesn't feel great, nobody will care how hip your changes are. Everything you play consists of combinations of those. When you feel you have the fingerings together, play along with your metronome beating on two and four . Once you can make it feel good, you can increase the tempo.
Speed is a by-product of accuracy.
If you're not accurate, your speed will simply not develop. And playing too fast too soon reinforces the bad habit of sloppy playing. When you master all of them, combine the different rhythms. Remember, if it doesn't feel good, it doesn't count. United Entertainment Media Inc. All rights reserved.