You are correct sir.
I was speaking (a bit erroneously) in the context of an equal tempered scale. (I think.)
Indeed, the natural overtone series is the proper context for a true perfect fifth.
I was speaking (a bit erroneously) in the context of an equal tempered scale. (I think.)
Indeed, the natural overtone series is the proper context for a true perfect fifth.
Remember that 7 semitones is not a perfect fifth. (Note this depends on your definition of perfect fifth, some people allow for being close, since equal temperament is so common.)
While a perfect fifth is a 3:2 ratio of frequency, seven semitones isn’t exactly 1.5, it’s more like 1.498.
800/540 is ~ 1.48, so I definitely agree the designers weren’t going for a fifth, very likely they wanted some beat interference to give it a nice metallic warble.