Gbmaj7 Major 7th
The Gbmaj7 chord is built from the notes Gb – Bb – Db – F.
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Also known as
Gb(maj7)Gbma7Gbmaj7(root37)Gbmaj7(root57)
Chord tones, one by one
GbRoot
Root
The fundamental note the chord is built on — Gb.
BbThird
Major third
Four semitones — makes the chord major (brighter, happier).
DbFifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
FSeventh
Major seventh
Eleven semitones — a lush, jazzy seventh just below the octave (maj7).
🎼 Related scales
🎹 Modal analysis
This chord implies the Ionian (major) scale; its characteristic note is the perfect 4th, what sets it apart from Lydian.
🎸 Genres
Pop · Classical · Gospel
🎤 Artists who made it famous
Antônio Carlos Jobim · Burt Bacharach · Steely Dan