B major pentatonic

Construction

Step pattern (W = whole step; m3 = minor-third gap, 3 half steps): W-W-m3-W-m3. Five notes, formula (scale degrees): 1-2-3-5-6.

Major pentatonic is the major scale with the 4 and 7 removed -- the two degrees that create half steps. Stripping them out eliminates all semitone tension, leaving a scale that sits consonant against virtually any chord in the key.

Origin and Relationships

• Built from the major scale (1-2-3-4-5-6-7) by omitting the 4 and 7. In the major scale, half steps occur between 3-4 and 7-8 -- removing 4 and 7 eliminates both, which is why no note in the pentatonic clashes with a major triad.
• Minor pentatonic is the 5th mode of major pentatonic (a mode means starting the same set of notes from a different degree). Same five pitches, different root. Every major pentatonic shares its note set with its relative minor pentatonic a minor third below.
• The five pentatonic modes by degree: 1st (1-2-3-5-6, major pentatonic), 2nd (1-2-4-5-b7, suspended), 3rd (1-b3-4-b6-b7), 4th (1-2-4-5-6), 5th (1-b3-4-5-b7, minor pentatonic).

Harmonic Context

In Roman numeral analysis (uppercase = major, lowercase = minor):

• I (major): Every note is a chord tone or safe extension. No avoid notes.
• IV (major): The scale's 3 lands as a bright extension over this chord -- consonant and open-sounding.
• V (major): Fits cleanly. The pentatonic avoids the 4 of the key, which would create tension against V.
• ii, iii, vi (minor chords in the key): Works over all three because the pentatonic contains no half steps that would clash with their chord tones.

Characteristic Tones

The intervals that give this scale its distinctive sound:

• 3 (major third): Defines the bright, major quality. Compare to Minor Pentatonic: minor pentatonic has b3 where major pentatonic has 3 -- one interval, and the entire mood shifts from dark to bright.
• 6 (major sixth): Adds warmth and a country-folk flavor without the pull of a major 7th. The 6 is what gives major pentatonic its open, optimistic ring.

Melodic Applications

Target 1, 3, and 5 for chord-tone strength; use 2 and 6 as extensions that never clash. The leap from 6 up to 1 (a 3-half-step gap) is a signature melodic move -- it creates variety without chromaticism. For expressive range, try mixing major pentatonic with minor pentatonic over the same chord: the contrast between 3 and b3 is a staple of blues and rock phrasing.

Practice Seeds

No wrong notes. Improvise freely over a major chord using only the pentatonic. Build confidence hearing how every note resolves cleanly -- this is the scale's defining strength.

Find the minor. Play major pentatonic, then restart the same notes from the 6. Hear minor pentatonic emerge from the same pitch set -- same five notes, different tonal center.

Add the missing notes. Play major pentatonic, then reintroduce 4 and 7 as passing tones. Listen for the half-step tension the pentatonic deliberately avoids -- this builds awareness of what the full major scale adds.

Pentatonic over changes. Improvise over a I-IV-V progression using only major pentatonic. Notice how the scale works across all three chords without adjustment -- this builds functional hearing across a key.