Most guitarists who explore alternate tunings begin by tuning
the guitar to a major chord. I usually ask beginning explorers
to try open G (D G D G B D) first and move on to open D (D
A D F# A D) or open C (C G C G C E) later in the learning
process. In this lesson, we'll depart from that tack by taking
a look at a minor tuninga variant on G minor: C G D
G Bb D. As you'll see, there are many advantages to minor
tunings, such as cool tonal opportunities, easier fingerings,
and a host of new compositional ideas. Let's examine some
of the ins and outs of C G D G Bb D and then see how they
work in the first couple of sections of my tune "Swept
Away."
In a major tuning like open G, any major chord can be played
with a straight one-finger barre, and the bass accompaniment
of the tonic chord (G major) can be played with the right
thumb without the need to fret any bass lines. That's coolit
makes it easy to chase melodies around with much or all of
your right hand, it makes it possible to play slide, and all
in all it makes beginning in a tuning like open G pretty painless.
However, moving all of your chords up and down the neck with
one-finger barres creates a pretty sterile musical environment,
and playing minor chords up the neck in open G is no picnic.
If you barre every string at the fifth fret and then try to
figure out a way to lower the second-string note by one fret,
you'll see what I mean. Since minor chords are a significant
part of any key (the ii, iii, and vi chords of major keys
are always minor), this is a real drawback to major tunings.
Let's see how minor chords work in G minor.
In G minor with a C bass, any one-finger barre can create
a five-note minor chord analogous to the major one-finger
barre chords in open G.

But here's the kicker: it is also extremely easy to play
major chords. The simplest way to do so is to raise the third
of the chord by one half step, turning any minor chord into
a major. In this tuning, play a one-finger barre and then
reach one fret higher on the second string with your middle
finger and voilà, there's the major chord!

In open G, the IV chord is C. If you want a good C bass note,
it has to be played with a barre at the fifth fret. Look at
the difference in C G D G Bb D, with that great low C on the
sixth string. Here are two C-chord voicings that come alive
in first position with a barre at the fifth fret:

You can also add the open C string to the C minor barre chord
to thicken up the bass.
And here are a couple of good fingerings for the V chord
(D); we now have command of the three most important chords
in the key of G minor.
The chord on the left has a tasty optional D-augmented voicing.
What makes minor keys so interesting? Major keys offer
one undeviating formula of seven half and whole steps, while
minor keys come in three flavors: natural, harmonic,
and melodic. We won't get into the details of the differences,
but it's important to know that different minor scales create
different chords, making minor keys an especially rich palette
for tonal color and chordal exploration. Staying in one minor
key doesn't confine you to seven chords but offers you peppery
substitutions that are easy to find and play. The IV and V
chords, for instance, can be either major or minor in character,
giving you great options for substitutions in tone and coloration
as you move through a piece. All told, the three minor scales
offer you more than 15 different chords without leaving the
root key. Let's look at some possible voicings in C G D G
Bb D tuning.
The ii7 chord in most minor keys is a great-sounding
Am7b5 chord, also known as A half-diminished. It turns up
in measure 50 of "Swept Away," transcribed on page
XX. Turnarounds, which move from ii to V in this tuning, sound
mysterious and evocative. The IIImaj7 chord (which first appears
in measure 1 of the piece as an Emaj9 chord) is another fat-sounding
collection of intervals, and its major brother, the VI or
Bb (voiced here as a Bb6), offers a great starting chord for
"Swept Away" (after a short four-bar introduction),
with its mellow sound slowly giving way to the more dissonant
minor textures that lie ahead.

Throughout the piece, the bass notes should sustain for the
full length of each bar wherever possible. In the introduction,
for instance, keep your index finger on the Eb bass note throughout,
and be sure that its wonderful low tone sustains and supports
the arpeggiated melody. Use your pinky for the melody notes
at the fifth fret of the first and second strings in bars
5, 9, 16, etc. The Cm7 chord in bar 18 doesn't use the low
C on the sixth string, but instead uses the C at the fifth
fret of the fifth string as its bass note. This is an artistic
choice: when the low C is used later in the piece, it has
a strong musical impact. It also allows a nice bass movement
(in measure 73) from D to Eb to E to F# in a continuous ascending
series of half steps.
The only difficult fingering in this piece occurs at bar
30. Use your index finger or thumb for the bass Eb note while
using your ring and pinky fingers for the melody. If this
proves to be too big a stretch, try capoing at the second
fret for the entire piece as I did when I recorded it. When
you reach bar 50, you'll get your first chance to hear that
great ii7V7 (Am7b5 to D7) change to which I referred
earlier. Be sure to play the pull-offs in the final two bars
with sufficient authority for the open strings to ring out
above the sustained bass notes. Remember that this is a wistful
ballad that should be played with emotion and tenderness.
[continue on to page 2 for the song transcription and
audio]