Abaug7 chord for piano with keyboard diagram.
Explanation: The Abaug7 is a four-note chord. Abaug7 can also be written as Ab+7, Ab7+ or Ab7#5. Notice that Abaug7 are identical with Ab7+5.
Theory: The Abaug7 is an augmented chord extended with a minor seventh.
Notes: Ab - C - E - Gb