Short answer: Gb7b9 is a Gb 7♭9 chord containing the notes G♭, B♭, D♭, F♭, A♭♭. It has 4 inversions. Use the diagrams below to learn each voicing on the keyboard.
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Notes: G♭, B♭, D♭, F♭, A♭♭
Notes: B♭, D♭, F♭, G♭, A♭♭
Notes: D♭, F♭, G♭, A♭♭, B♭
Notes: F♭, G♭, A♭♭, B♭, D♭
Gb7b9 is a Gb 7♭9 chord. It contains the notes G♭, B♭, D♭, F♭, A♭♭. On piano, play these notes simultaneously to sound the chord.
To play Gb7b9 on piano, press the keys G♭, B♭, D♭, F♭, A♭♭ together. The root position uses these exact notes. There are 4 inversions available, each rearranging the same notes in a different order.
The Gb7b9 chord contains the notes: G♭, B♭, D♭, F♭, A♭♭.
Gb7b9 has 4 inversions. Each inversion rearranges the notes so a different note is at the bottom. The root position starts with the root note, the first inversion moves it to the top, and so on.