If one where to exclude the socio-cultural aspects during earlier times where women were "designated" to perform and limit themselves to certain spheres, like becoming bearers of children and good mothers,
there is actually scientific evidence why men are better at certain fields and women at others."Men’s and women’s brains are fundamentally different, study finds, one better at focusing, one better at multitasking". The brains of men and women are hardwired differently which likely explains why.

Scientists found women are better at multi-tasking but men are better at concentrating on a single task after they scanned the brains of 949 people (men's brains, top, and women's brains, bottom). Undated handout photo issued by National Academy of Sciences of brain networks showing significantly increased within hemispheres in males (upper) and between hemispheres in females (lower)
COMPOSING music is generally considered a focused task while on the other hand below is definitely mutitasking!!!
