It means that you are genetically pre-dispositioned to either enjoy music or to play it. "In your blood" refers to the DNA you get from your ancestors.
It is not an idiom, it means your nose is itching.
idiom means expression like a page in a book
Simply its mean a bully.
Young blood is used to describe up-and-coming young people.
I think it means that that person agrees with that others persons idiom and that it fit that question that the teacher or whoever asked that question.
The idiom your blood is boiling usually means that you are mad/furious.
"Blue blood" LITERALLY means blood that is blue in color.
get scared or terrified
It is not an idiom, it means your nose is itching.
It's not really an idiom. It means "what are you thinking about."
RFP is not an idiom. It's an abbreviation.
It means that someone has listened to a piece of music and plays it from that rather than reading notes off of sheet music. I did it with the violin for years. Played in the orchestra and did very well yet cannot read music to this day.
"Sieve" is not an idiom. See the related link.
It's not an idiom. It means the tip of your nostril.
idiom means expression like a page in a book
Does it mean what it seems to mean? Yes, music is something pleasing, so whatever it was, it was pleasing to him. An idiom is a phrase that looks like nonsense unless you know the definition, so this is a figure of speech.
This is not an idiom. It is a measurement. $100,000 is how you write it in numbers.