coding language question

[Donuk]

I have been having fun over the weeks learning to play around with tagFormat and the like.
I am just curious about what underlying language symbols such as ^$} &c come from. I might look it up and attempt to understand better what is going on.
Anyone other than Simon know??

Another curiosity - not worth a thread on its own - is that the field that in my tag editor, (Tag Editor for Mac (brilliant)) has a field, Year. Minim does not respond to Year but will if you call up "Date". Curious and no doubt clever

Donuk