Written in Code

I saw the movie Maestro, but that didn’t help me decipher this message found in Carytown Sunday. Care to try?

[Diane]

I have no idea, either.

[Kathy A]

I have no idea, I even asked Mr Google but he didn’t know either

[Phil Howcroft]

sorry Allison , it's a touch one ...try google lens , it will find similar images and they may have a narrative