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Gb Altered Chord: Gb7alt (Also: Gb7altered, Gbalt, Gbaltered, Gb7#9#5, Gb7#5#9, Gb7b9#9, Gb7#9b9, Gb7#5)

Dominant 7

M3, M3, 2, m3, 2

C, E, G#, Bb, Db, D#