Goat wool issues #1

DrJellyfish wrote:

(subcategory of "seemingly non-insidious student questions")

"Why is tritone substitution called that?"

Besides, the name is a sort of "self-definition"

Well yes, but things start to take a turn for the worse when they ask you which tritone it refers to: the interval between the two fundamentals (my favorite) or the tritone common to both chords?

Because in the end, what allows the interchangeability of the two chords is the common tritone

DrJellyfish wrote:

when they ask you which tritone it refers to

Perhaps for someone less experienced, the fact that the tritone can be understood in a harmonic sense (the case of tritone substitution) or melodic...

Yes, but, in the end, which tritone is being referred to?

For example, if in G7 C♫ we replace the G7 with Db7, is this infamous tritone G♫ D or F B (enarmonically speaking)?

Because this is a matter of goat wool