Watch the Zig online guitar lesson by Andrew Ford from 50 R&B Bass Grooves You MUST Know
Here is a Meters style groove, very funky New Orleans style riff. The line uses the notes in the minor pentatonic scale, it starts with a motif in bar 1 that is repeated in bar 3. We use bars 2 and 4 to embellish the groove and propel the song with more melodic movement based on that minor pentatonic scale. Notice how the riffs in bars 2 and 4 are consistent with the groove but each slightly different. This is a different type funk groove from bass and drums, very greasy and the relationship between the two is not the typical follow the kick drum pattern.