[musicale]

Looks like CSV with a schema, which is OK but can become unreadable if your field (column) space is large and sparse (imagine 50 different optional fields of the same type.)

I still kind of like classic NeXT (and pre-XML OS X) property lists.

GNUstep seems address some of their limitations:

http://wiki.gnustep.org/index.php/Property_Lists https://everything.explained.today/Property_list/

I think Apple probably erred in switching to XML.