i guess the augmented fourth in lydian isn't a thing then.TribeOfHǫfuð wrote: Fri Aug 20, 2021 11:22 am It is a part of the system, but not in use for obvious reason (the tritonus).
maybe you want to have another go that.
also, looking at this from another angle, if we're talking about modes in use in music today, why only seven? why don't the superlocrian, the phrygian dominant, the lydian augmented and others not get a pass in your "pragmatic" rules of music?