G7+9 (G7#9) altered chord
Altered G chord for piano presented by keyboard diagrams.
Explanation: The G7+9 alter the G9 by the change of one note. The chord name can also be written as G7#9 or G7(#9).
Theory: The G7+9 are identical with the G9 except that the major ninth is sharpenedThe tone is one half step higher.
Notes: G - B - D - F - A#