Convert-ly and related files

[K. Kellogg-Smith]

I’m using convert-ly with old (‘legacy’) .ly files to learn more about 
LY programming. I have questions about the inter-relationships between 
convert-ly, convertrules, and the source(s) of the code substitutions 
I’m finding in converted .ly source code. While this is an excellent and 
educational user forum, it doesn’t look to me like it’s the appropriate 
one for answers to my convert-ly questions. For example, is there a list 
of obsolete LY codes and commands and the last version after which those 
codes and commands were no longer supported (for example, the 
articulation pairs “cr, rc” and “decr, rced”)? I’ve looked into the 
change logs of fixes, but that’s a very tedious exercise. Any help would 
be appreciated.

Ken