You are TOTALLY incorrect! There are many different "forms" of INTELLIGENCE.
Someone who may be a MUSICAL or VISUAL genius may be a complete retard when it comes to verbal conceptual skills. On the other hand, you can be a mathematical genius but that doesn't mean you can compose music or art. There are many different aspects of cognitive function, I happen to have ABNORMALLY high verbal conceptual skills, and just AVERAGE math ability. This is why FULL SCALE IQ is your "total" IQ, but as I just explained, FSIQ can be deceiving.
the full scale IQ test, which is used commonly today tests both verbal comprehension and analytical ability. MATH has nothing to do with it. They dont test MATH. They never have. Never will.
mensa offer you membership if you score in the top 2 percentile in either of the sections of the exam.
muscial or visual genius are subjective concepts and furthermore its unheard of people who are brilliant in one area, not being brilliant or very capable in most..inless they are autistic or have some specific condition.
i.e. analytical people are usually very good at things like music an art- but those are things that require passion and practice- which means that they cant be "scored" as a genetic ability like analytics and comprehension.