Mathematics and music go together. The octaves are in 2:1 ratios of frequency. Most rhythms are 2 or its powers, 3, 6, or 12. Anything else is awkward; thus "Mars" in Gustav Holst's The Planets uses 5/4 time to show the mechanical clumsiness of war. Genuine pentuple time is rare; I have noticed a couple of cases in which Gustav Mahler uses it to indicate that the climax is nigh. Dividing one beat into five even notes must be one of the trickiest of behaviors in music, as one is tempted to play two sixteenth notes and three corresponding triplets.
It is remarkable that the children exposed to music -- orchestra or band -- tend to do best in math and science. It is telling that one country (Hungary) does what it can to get every child playing an orchestral instrument. It also has an above-average output of mathematicians, scientists, and engineers.
Give your child a computer or a violin? Go with the violin. It's hard to describe what benefits the violin offers -- but any idiot can operate a computer and do some really dumb and crazy stuff on it.
The greatest evil is not now done in those sordid "dens of crime" (or) even in concentration camps and labour camps. In those we see its final result. But it is conceived and ordered... in clean, carpeted, warmed and well-lighted offices, by (those) who do not need to raise their voices. Hence, naturally enough, my symbol for Hell is something like the bureaucracy of a police state or the office of a thoroughly nasty business concern."
― C.S. Lewis, The Screwtape Letters