Scales
Expanding E Minor Pentatonic
E minor pentatonic is five notes. E natural minor is seven. The two notes you add to get from one to the other are not just extra options — they open up entirely new chords, new melodic moves, and a harmonic range that pentatonic alone cannot reach. This page shows exactly what those two notes are, what they do, and how to start using them.
Step 1 — Where you start: E minor pentatonic
Five notes. No half steps, no tension, nothing that pulls strongly toward resolution. That smoothness is why pentatonic works over almost everything — it avoids the notes most likely to clash with whatever chord is playing.
E minor pentatonic
No F#, no C. Those are the two missing notes that define natural minor.
Step 2 — First expansion: the blues scale
The blues scale adds one note to E minor pentatonic — the flat 5th, which is Bb. That single note changes everything about the feel.
E blues scale
The Bb sits between the 4th (A) and the 5th (B) — right in the middle of the scale's most stable interval. That placement makes it maximum dissonance: it clashes with nearly every chord in the key of E minor. That clash is the point.
The rule every blues player uses without thinking about it: the Bb is a passing note, not a landing note. You move through it — A to Bb to B — and the resolution onto B releases the tension. Holding the Bb on the beat sounds wrong. Passing through it sounds like the blues.
How the flat 5 is used
Step 3 — Full expansion: E natural minor
Natural minor adds two notes to the pentatonic: F# and C. These are not blues tension notes — they are melodic notes that make your lines sound more composed and give you access to chords that pentatonic cannot reach.
E natural minor
Creates stepwise motion between E and G that pentatonic skips over. Sounds melodic and vocal — classical and folk guitar use this interval constantly. Also the major 3rd of D major chord, giving your lines a brighter color when the D chord is playing.
The darkest note in the natural minor scale. Creates a strong downward pull toward B (the 5th). Used heavily in classical minor key melodies. The b6th is what gives natural minor its melancholic quality that pentatonic can only hint at.
Chords that open up
This is the most important part. Adding F# and C to your vocabulary doesn't just give you two extra notes — it gives you access to five additional chords that pentatonic cannot imply. These are the diatonic chords of E natural minor that require those two notes.
The C note is the b3rd of Am. Without C in your scale you can't imply an Am chord in your melody. This is one of the most emotional chord movements in minor key music — Em to Am. Adding C makes your lines land naturally when that chord arrives.
The F# is the 5th of Bm. Natural minor has a minor v chord — not a major V like major keys. Bm has a softer tension than B major. Melodic lines using F# over a Bm chord sound composed and intentional rather than accidental.
One of the most powerful chords in rock and metal. Em to C is everywhere — from classical music to Black Sabbath. The C note in your melody lands perfectly when this chord plays. Without it, you're playing around the chord's defining note.
The other great rock chord. Em to D to C to B is one of the most common progressions in rock. The F# in your melody is the major 3rd of D — it sounds bright and resolved when D is the chord. This is why natural minor melodies over D chords sound so different to pentatonic lines.
Both added notes — F# and C — are in this chord. The diminished chord has maximum tension and is used as a passing chord between Em and G or between Am and Bm. Using both F# and C in the same phrase implies this tension naturally.
The full chord map — E natural minor
Pentatonic implies Em, G, Am, D — but not Bm, C, or F#dim. Those require the added notes.
How to start using the added notes
Don't switch to natural minor and abandon pentatonic. Use pentatonic as your foundation and reach for F# and C at specific moments.
Use F# when the chord is D or Bm
F# is the major 3rd of D and the 5th of Bm. Landing on F# when either of those chords plays sounds fully resolved. In pentatonic you would skip from E to G — adding F# fills that gap with a note that belongs to the chord.
Use C when the chord is Am or Cmaj
C is the b3rd of Am and the root of C major. When the progression moves to Am, landing on C is landing on the chord's defining note. Your melody and the harmony lock together.
Use C as a pull toward B
C to B is a half step — the strongest melodic resolution in minor keys. A phrase that descends C — B — G has a finality that pure pentatonic cannot achieve. This is what classical and folk guitar use constantly.
Use F# as a stepwise connector
E — F# — G is a smooth three-note step that pentatonic skips (E jumps straight to G). Adding F# gives your lines a vocal, melodic quality. It is the most accessible of the two additions — try inserting it as a passing note between E and G in any pentatonic phrase.
Compare all three in Scale Mapper
Load each scale and look for the F# and C — those are the two notes that change everything. See exactly where they sit on every string.