Gb7+9 (Gb7#9) altered chord
Altered Gb chord for piano presented by keyboard diagrams.
Explanation: The Gb7+9 alter the Gb9 by the change of one note. The chord name can also be written as Gb7#9 or Gb7(#9).
Theory: The Gb7+9 are identical with the Gb9 except that the major ninth is sharpenedThe tone is one half step higher.
Notes: Gb - Bb - Db - E - A