Gordon Francis Blaney Jr. replied to Peter Land's discussion What is the Function Symbol for a Dominant Tritone Substitution?
"A Substitute Dominate in Classical Harmony is: X+6; where X is a valid modifier of an augmented sixth chord --- misspelled or inverted or as expected it is what it is.
A Substitute Dominate in Jazz Harmony is: SUB V/X; where X is a valid roman…"
Sep 10, 2012
Greg Brus replied to Peter Land's discussion What is the Function Symbol for a Dominant Tritone Substitution?
"Oh, I use functions too. But a dominant is a dominant, while a dominant 5> 9> 4/3 3.141592 is pure idiocy coming from desperately trying to fit new ideas into a strict assesment system that's very outdated and thus useless.
Anyway, Dsub sounds nice…"
Jul 3, 2012
Peter Land replied to Peter Land's discussion What is the Function Symbol for a Dominant Tritone Substitution?
"When it comes to analysing music i don't want to revert to absolute symbols (ie. C major or G major) but would prefer to continue to use Functions when i hear Functions.  Wagner and co. up until today continue to use Functions.  Yes…they are…"
Jul 3, 2012
Greg Brus replied to Peter Land's discussion What is the Function Symbol for a Dominant Tritone Substitution?
"Why can't you quotate the opening post? Ning is so stupid...

Anyway I'm not aware of a symbol simpler than the one described by you that would actually make sense... BUT, since this system is effective pretty much till the end of 19th century and…"
Jul 3, 2012