Hi Jer,

I thought about doing just that but since the melody wanders about, I decided to keep it simple and just call it an Ab9. The D automatically makes it a #11 chord anyway.

I hope you are doing well in the Mexican mountains.

Regards,

Keith

P.S. There is a cute 1939 cartoon built around this song: https://www.youtube.com/watch?v=Fzec-9ODSTc that all might enjoy.