Playing the changes: target notes inside the shapes – free course

The pentatonic "works" over almost everything, but it does not follow the chords: it floats above the progression. For the listener to hear the changes in your melody, you need to aim for the chord tones, especially the thirds, on strong beats. Good news for guitarists: the chord shape you already know is under your fingers. The target notes are inside it.

1. A pop progression: G – D – Em – C

Chord	Notes (1 – 3 – 5)	The third in the open shape
G	G – B – D	B: open string 2, or string 5 fret 2
D	D – F♯ – A	F♯: string 1 fret 2
Em	E – G – B	G: open string 3
C	C – E – G	E: open string 1, or string 4 fret 2

Here is a melodic line where every first beat falls on a chord tone; the passing notes come from the G major pentatonic.

M:4/4
L:1/8
Q:1/4=88
K:G clef=treble-8
"G"B2 d B A G A B | "D"A4 F2 A2 | "Em"G2 B G E2 G A | "C"G4 E4 |]

2. Embellishing inside the chord shape

In 1960s soul and R&B, guitarists improvised inside the chord: they kept the shape and added or lifted one finger to create little melodies (sus4, sus2, sixth…). The rhythm part starts to sing.

M:4/4
L:1/8
Q:1/4=84
K:D clef=treble-8
"D"[DAdf]2 "Dsus4"[DAdg]2 "D"[DAdf]2 "Dsus2"[DAde]2 | "A"[A,EAc]2 "Asus4"[A,EAd]2 "A"[A,EAc]2 "Asus2"[A,EAB]2 |]

Over D: the little finger adds G (fret 3, string 1), then you lift the middle finger to let the open E ring. Over A: the same game on string 2 (fret 3, then open).

3. Following the blues changes

Over a blues, the minor pentatonic is enough to sound "bluesy", but aiming for the third of each chord makes the form audible. In A: C♯ over A7, F♯ over D7, G♯ over E7. And the blue note C natural becomes the seventh of D7: one note, two roles.

M:4/4
L:1/8
Q:1/4=92
K:A clef=treble-8
"A7"=c^c e a =g e ^c A | "D7"=c2 A F D4 | "E7"=G^G B e d B ^G E | "A7"A8 |]

Bar 1: C → C♯, the "blue" third resolving. Bar 2: C natural (the seventh of D7) then F♯ (its third). Bar 3: G → G♯ over E7, the same gesture as in bar 1.

Step-by-step exercise

Start the pop backing in G. Arpeggiate each chord in its open shape, one note per quaver, following the changes.
Play only the third of each chord, as a whole note, on the change. Listen to how that line alone "draws" the progression.
Add two or three pentatonic notes before each third, to approach it.
Improvise freely with a single rule: at each chord change, a chord tone on the first beat.
Do the same over the blues in A with the thirds C♯, F♯, G♯.

See the chord under the scale. Keep a "ghost" chord shape under your hand while improvising: your target notes are where your fingers would land to strum the chord.

Common mistake: aiming for the chord tones but arriving late. The target note must fall on the change, not a bar after. Anticipate: think of the next chord from the end of the current bar.