
Music Theory
CHAPTER 10
219
whole note by the bottom number in the time signature, in this case two. This
gives us fi ve minim’s (half notes) to the bar.
If applied to the time signature 6/8 (six-eight) 6 there are, eighth notes (qua-
vers) in the bar. These, different time signatures, while appearing quite abstract
and meaningless on paper produce very different rhythmic results when played.
Although most dance music use 4/4 or 3/4, writing in different time signatures
can occasionally aid in the creation of grooves.
CREATING GROOVE
While it is possible to dissect and describe the principles behind how each
genre of music is generally programmed, defi ning what actually makes the
groove of one record better than another isn’t so straightforward. Indeed, cre-
ating a killer dance fl oor groove is something of a Holy Grail that all dance
music producers are continually searching for. Although fi nding it has often
been credited to a mix of skill, creativity and serendipity, there are some
general rules of thumb that often apply.
Injecting groove into a performance is something that any good musician does
naturally, but it can be roughly measured by two things: timing differences
and variations in the dynamics. A drummer, for instance, will constantly differ
how hard the kit is hit, resulting in a variation in volume throughout, while
also controlling the timing to within microseconds. This variation in volume
(referred to as dynamic variation) injects realism and emotion into a perfor-
mance while the slight timing differences add to the groove of the piece.
By adjusting the timing and dynamics of each instrument, we can inject groove
into a recording. If a kick and hi-hat play on the beat or a division thereof,
moving the snare’s timing forward or backward will make a huge difference to
the feel. Similarly, programming parts to play slightly behind the beat creates a
bigger, more laid-back feel, while positioning them to play in front of the beat
creates a more intense, almost nervous feel. These are the principles behind
which swing and groove quantize in sequencers operate, both of which can be
used to affect rhythm, phrasing and embellishments.
Using swing quantize, the sequencing grid is moved away from regular slots
to alternating longer and shorter slots. This can be used to add an extra feel to
music, or, if applied heavily, can change a 4/4 track into a 3/4 track. Groove
quantize is a more recent development that allows you to import third-party
groove templates and then apply them to the current MIDI fi le. This differs
from all other forms of quantize because it redefi nes the grid lines over a series
of bars rather than just one bar, thereby recreating the feel of a real musical
performance. In many instances, groove templates also affect note lengths and
the overall dynamics of the current fi le, creating a more realistic performance.
In more adept sequencers, groove templates extracted from audio fi les can be
onto a MIDI fi le to recreate the feel of a particular performance.