Randy Ellefson is an instrumental guitarist with endorsements from Alvarez Guitars,
Peavey, and Morley Pedals, and a Bachelors of Music in classical guitar, Magna Cum
Laude.
His most recent album, "Some Things Are Better Left Unsaid", was independently
released in July 2007. Ellefson is also known for his extensive experience with
tendonitis, which once took away his playing for five years.
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Click here for a printer-friendly version of "Interval Riffs: Simple Counterpoint".
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Counterpoint is defined as two or more simultaneous melodies that maintain their
independence while still forming a harmonic relationship. A single instrument like
classical guitar can perform counterpoint with three or four lines seeming like a
single part. However, rock guitarists seldom do this for a variety of reasons, but
that doesn't mean it can't be done.
In previous articles, we examined intervals, how to write riffs with them, and
different ways to melodically ornament them. The two main intervals were fifths and
thirds, with each having neighbor and/or passing tones. Now we'll go further to
using mixed intervals and introduce two basic ideas in counterpoint: oblique motion
and contrary motion.
Mixed Intervals
So far we've been using three implied chords: E minor, D major, and C major, in that
order. The lower line has also been E, D, and C, and the main interval has either
been thirds or fifths. What we'll look at now is retaining that bass line, but
changing what interval is above it. Take a look at Example 1.
Using three different intervals, a third, fourth, and fifth, we have this riff as
performed in Example 2.
Click to enlarge |
MP3 - Example 2
The upper part remains on G while the lower line descends. As this happens, the G
forms an E minor third with the E below it, and when the passage ends, a fifth with
the C below it. G is a common tone for E minor and C major (it is in both the first
and last chords).
In between at measures 5-6, while the lower note is D, G seems like a non-chord
tone. After all, the notes of D major are D, F#, and A. There's no G, but we're
playing it anyway. There are two interpretations.
One: G is a non-chord tone that works with D because G is in the chord before and
after it. This makes the temporary dissonance of G not being in the chord smoother.
Two: The chord has changed from D major to being G major in second inversion (i.e.,
the fifth, D, is the lowest note). G major is spelled G, B, and D. Any time you're
playing a perfect fourth, the higher note is the root, as if it's a
root-fifth-octave voicing without the lower root (Example 3).
Simple Counterpoint
In previous articles, when using thirds or fifths, we were always doing parallel
motion, which means the two notes were a third apart on the first chord and remained
that way as the notes moved to other chords (Example 4). Fifths were always a fifth
apart.
Now, one line moves and the other one doesn't, which is called oblique motion. It
might seem that less note movement would be less interesting, but both oblique and
contrary motion create a sense of depth and space within the guitar part. The
stationary note causes the following changes in this case:
1. There are two independent parts
2. Three different intervals and sounds are used: a third, fourth, and fifth.
3. The chord changed from D major to G major, which also gives the bassist two
options: playing D or G. If you listen carefully to the mp3s, you will hear the
bass move from D up to G and then walk down to the C chord.
A good use of oblique motion is to perform a V-I progression, since the fifth note
of a key is in both chords. In E minor, that note is B. The V chord of B major is
B, D#, F# and I chord of E minor is E, G, B). You can hold down the B while
alternating the E with a D# (Example 5).
Contrary Motion
When two lines move in opposite directions, it's called contrary motion. This
technique is useful for switching between a third and fifth in particular.
A fifth can collapse inward to a third if the lower note moves up a step and the
higher note falls a step. In doing this, C and G become D and F# respectively, so a
fifth becomes a third and the chord changes from C to D. The reverse works just as
well, so a third can expand outward to become a fifth (Ex. 6).
Another application in E minor or major is for the V - I progression, B major to E,
as in Example 7. Here, the low B drops to the open E while the D# rises to another
E, so a third becomes an octave. We can also add another B on top and leave it
there for both chords (Ex. 7b). This sounds richer.
Putting It All Together
If we combine the ideas in this article with the ornamentation ideas of the last
article, we arrive at a riff like that in Example 8. This uses mixed intervals,
upper and lower neighbor tones, and parallel, oblique and contrary motion. Notice
the last beat of measure 8, where C5 collapses to D3, which then rises in parallel
to Em3. Listen to the mp3 below, where the bass guitar line is outlining the G chord.
MP3 - Riff
Click to enlarge |
Coda
Counterpoint is a simple way to add depth to your parts for a more spacious, richer
guitar riffs, especially when combined with mixed intervals. In subsequent
articles, we'll go through the song "Motif Operandi" from my first album, The
Firebard, riff by riff to see these applications and variation techniques in
practice.
Additional Columns by Randy Ellefson
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