My family used to sing me Greek children's songs, and unfortunately I don't remember any of them! I would love to track them down, but I'd have to hear it first to know what it is. I bet I would remember.
To-go Greek festivals are the new way to celebrate Greek culture! There's one happening in New York on June 5th and 6th where you can pickup food. I'm not sure if there will be other types of vendors there but I know the whole event is covid safe!