This one's for you, Ray! This is Slap 101 here. We're going to focus on the right hand (for us right handed players, anyway) and our control of rhythm.
So is everyone hip to subdiving time? 16th notes are as fast as we need to go for now, and a single 4/4 measure has 16 sixteenth notes that fall like this:
1e&u
2e&u
3e&u
4e&u
(say this as ONE EE AND UH TWO EE AND UH, etc.)
If you say this along with a straight drum beat, the 1 and 3 are with the kick drum and the 2 and 4 are with the snare drum. All of those are called downbeats. The e's, &'s, and u's are spaced evenly between those down beats. The &'s are halfway in between, and they are called upbeats.
If I ask you to play quarter notes, I mean play 1 2 3 4.
If I ask you to play 8th notes, I mean play 1 & 2 & 3 & 4 &.
If I ask you to play 16th notes, I mean play 1e&u2e&u3e&u4e&u.
Triplets are a little funky. You're putting 3 notes over 4 16th notes. Think in terms of 3 syllables per downbeat: "Trip-ul-let Trip-uh-let, etc." So when I say play triplets, I mean play 1-uh-let 2-uh-let 3-uh-let 4-uh-let.
Make sense? Don't worry if it doesn't yet, the sound clips below will help clarify.
For this exercise, I always alternate between slapping the E string (muted except on the 1's and 3's) and plucking the G string (always muted). The thumbed and muted E string I'll call "T", the thumbed and open E string I'll call "O", and the plucked and muted G string I'll call "P".
Quarter notes look like this:
OPOP 1234
Eighth notes look like this:
OPTPOPTP 1&2&3&4&
Sixteenth notes look like this:
OPTPTPTPOPTPTPTP 1e&u2e&u3e&u4e&u
Triplets get funky because your down beats will alternate between a thumb and pop (did you notice that the downbeats are all thumbs in the patterns above?). With triplets, you'll open thumb the 1 and 3, but you'll pop the 2 and 4.
OPTPTPOPTPTP 1ul2ul3ul4ul
This exercise will force you to consciously and intentionally switch gears between quarter notes, eighth notes, triplets and sixteenth notes. We're going to play a pre-ordained/scheduled rhythmic pattern so that you are forced to control your rhythm. Feel free to come up with your own order for the rhythms, but whatever you do make sure you're practicing something intentional rather than random. You want to have something to go for rather than just flailing about.
So after all those words (sorry 'bout that!!), here's what I want you to try doing. Play the following pattern:
QQEEQQTTQQSSQQ
where:
Q= 1 measure of Quarter notes
E= 1 measure of Eighth notes
T= 1 measure of Triplets
S= 1 measure of Sixteenth notes
Here's me doing it at 3 different tempos:
SlapEx100 SlapEx110 SlapEx120
So bust out a metronome and start at a comfortable tempo for you. Once you own it, increase the tempo and start building up some more speed!
Once you can go in and out of the various rhythms consciously, then the real fun will begin when you can switch off your brain and let the rhythms just come out as you feel them.
I'll do a part B to this exercise that will take a simple bass line and add varying levels of energy to it by using the right hand like a metronome. But you need to master this first!