I understand both. When I think about modes, I think 12. When I read Rick Beato's book, I think 24.

At the end of the day, there is no confusion when you are reading notes from standard notation/tab or hearing notes, assuming you can hear...lol.

Those notes and chords, for that matter, have to go together no matter what you call them or how you arrived at that sound.

We use a lot of different communication methods to communicate the same thing. For example, D minor, Dmin, Dm, and D-. How to say Dorian to a guitar player. Play like that Santana stuff...lol

Talk to someone from most universities, and it is 24. Talk to the guy who teaches at the music store, and it will likely be 12.

If you are confused by all this, you most likely never learned to speak both French and English...lol do,re,mi, and all that female dear stuff...lol

Billy

“Amazing! I’ll be working with Jaco Pastorius, Charlie Parker, Art Tatum, and Buddy Rich, and you’re telling me it’s not that great of a gig?
“Well…” Saint Peter, hesitated, “God’s got this girlfriend who thinks she can sing…”