It means the note should be played as written disregarding the key sign. Also, by convention, sharps and flats are "sticky" within a measure; the natural sign resets those as well.
From sign del segno
A (apex)
The repeat sign looks something like this :ll .
Sharp (usually a half step above the natural note)
If you are refering to music, the sign for sharp is #
The purpose of the music natural sign in sheet music notation is to cancel out any previous sharps or flats on a note, returning it to its natural pitch.
The percent sign in music notation is used to indicate a repeat of a section of music. It tells the musician to go back to a specific point and play the music again.
If you mean Royal Conservatory of Music exams, I believe they have a website that you can sign up on. I don't know the site address, but you could Google search, "Royal Conservatory of Music."
Cantus, meaning a song or music.
Usher I think in less you mean the record company. The record company is "The Island Def Jam Music Group".
That is not a question we can answer for you.
you can get free music any type you want on imesh but you have to sign up but sign ups for free any way.