What are some of the shocking facts that j. k rowling revealed about her characters of her book harry potter, which are not mentioned in the series

Are there choices or anymore detail it don't look like the full question.

it was vincent van gogh

c, d, e, f, g, a, b, and c.

sometimes western music will also use solfege. the names of these are do ra me fa sol la si (or ti) and do.

to indicate a note a half step higher or lower then the original note, you would say c # (for a half a step above c) or bb (for half a step below b)