Gbadd15 Major

The Gbadd15 chord is built from the notes Gb – Bb – Db – Gb.

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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.

GbExtension

Extension (24 st)

An upper extension 24 semitones above the root.

🎼 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

add15 in every key

More Gb chords

More Gb chords from Ionian (major)