Aaug7 chord for piano with keyboard diagram.
Explanation: The Aaug7 is a four-note chord. Aaug7 can also be written as A+7, A7+ or A7#5. Notice that Aaug7 are identical with A7+5.
Theory: The Aaug7 is an augmented chord extended with a minor seventh.
Notes: A - C# - F - G