F7+9 (F7#9) altered chord

Altered F chord for piano presented by keyboard diagrams.
Explanation: The F7+9 alter the F9 by the change of one note. The chord name can also be written as F7#9 or F7(#9).
Theory: The F7#9 are identical with the F9 except that the major ninth is sharpenedThe tone is one half step higher.