What does a natural sign do to a note?
A natural sign in music cancels out any previous accidental (sharp or flat) that may have been applied to the note. It indicates that the note is to be played or sung at its original (natural) pitch, without any alterations.
A natural sign placed in front of a note cancels any previous sharp or flat sign in the measure and indicates that the note should be played as its natural pitch. In other words, it removes any alteration (sharp or flat) applied to the note and returns it to its original, unaltered state.
A natural sign, which looks like a lowercase letter "n" written in front of a note, is a musical symbol used to cancel the effect of a sharp or flat applied to the note. It essentially restores the note to its original, unaltered state.
To understand what a natural sign does to a note, it's helpful to know what sharp and flat symbols do. A sharp (♯) raises the pitch of a note by a half step, while a flat (♭) lowers the pitch of a note by a half step. For example, if you see a B♭ (B flat) in sheet music, it means the B note is played one half step lower than the normal B. Similarly, if you see a C♯ (C sharp), it means the C note is played one half step higher than the normal C.
Now, when a sharp or flat is applied to a note, it generally remains in effect until you encounter a natural sign or a new measure begins. When a natural sign is placed in front of a note, it cancels any previous sharp or flat applied to that note within the same measure.
So, to summarize, a natural sign negates the effect of a sharp or a flat on a note, returning it to its natural, unaltered pitch.