Gbmin(maj7)

Construction

Built from these intervals: 1-b3-5-7.

The b3 darkens the chord with minor quality. The 7 -- just one half step below the octave -- pulls upward toward the root. The b3 and 7 create a striking dissonance: the b3 sits three half steps above the root while the 7 sits eleven half steps up, framing a minor 6th between them that gives the chord its dramatic internal tension. min(maj7) is a minor triad with a major 7th added.

Harmonic Function

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

• im(maj7) (minor-major seventh -- minor triad with major 7th) in minor -- tonic chord built from harmonic minor (a minor scale with a raised 7th degree) or melodic minor (a minor scale with raised 6th and 7th degrees); the raised seventh creates upward pull
• Chromatic passing -- appears between i and i7 in the line cliche, a progression where one note descends chromatically while the rest of the chord holds steady
• Melodic minor tonic -- the defining chord of melodic minor harmony, built on that scale's first degree

The tension between b3 and 7 gives this chord a dramatic quality that classical and jazz composers exploit for suspense.

Character

As a member of the minor seventh-chord family, min(maj7) stands apart through its internal friction. The minor 6th between b3 and 7 is the source of the chord's drama -- a dissonance that feels deliberate and cinematic. Compare to min7: min7 has b7 where min(maj7) has 7, and that single swap trades relaxation for suspense. This is the James Bond chord -- film noir tension, minor keys with a dangerous sophistication.

Related Sounds

These chords share the minor foundation but differ in upper intervals:

• min7 (1-b3-5-b7) -- b7 instead of 7, much more relaxed and far more common
• min (1-b3-5) -- the parent triad without seventh tension
• min(maj9) (1-b3-5-7-9) -- adds the 9, opens the sound while keeping the b3-7 tension
• min6 (1-b3-5-6) -- the 6 sits one half step below the 7, a gentler Dorian warmth
• Implies melodic minor or harmonic minor

Voice Leading

Voice leading tracks how individual notes move from one chord to the next. The 7 creates chromatic voice leading opportunities that define this chord's musical purpose.

• im(maj7) to i7 to i6: The classic line cliche. The 7 steps down to b7, then to 6, while root, b3, and 5 hold steady. This chromatic descent is the chord's most recognizable use.
• im(maj7) to IVmaj7: The 7 becomes the #11 of IV -- a Lydian color (Lydian is a mode known for its raised 4th degree). The b3 becomes the 7 of IVmaj7. Two tones find new roles in the subdominant.
• im(maj7) to V7: The 7 holds as the 3 of V7 -- a common tone. The b3 moves down a half step to the 5 of V7. The shared 7-to-3 connection anchors the move to dominant.

These movements apply in any key -- the intervals are the same regardless of root.

Practice Seeds

The clash. Play the b3 and 7 together, isolated from the rest of the chord. Hear the wide dissonance between them -- that tension is the entire character of min(maj7).

Line cliche. Play im(maj7) to i7 to i6 to i in one key. Track the chromatic descent (7 to b7 to 6) while the triad holds -- this progression makes the chord famous.

Compare to min7. Play min(maj7), then min7 on the same root. One interval changes (7 vs. b7), but the mood shifts from suspense to warmth. Internalize the difference.

Melodic minor connection. Play min(maj7), then the melodic minor scale from the root. Five of seven scale tones are chord tones -- this is melodic minor's defining sonority.