Which symbol represents a sharp note in musical notation?

The symbol that represents a sharp note in musical notation is ♯. This symbol indicates that the pitch of a note should be raised by a half step, which is a fundamental concept in Western music theory. When a note is sharped, it moves to the next higher key on a piano keyboard or a half step up in pitch.

For instance, if the note C is sharped, it is played as C♯, which is the note immediately to the right of C on the keyboard. The understanding of this symbol is vital for performers and composers as it directly influences how music is interpreted and played.

The other symbols serve different purposes in musical notation: ♭ indicates a flat note, lowering the pitch by a half step; ♮ is the natural sign that cancels a previous sharp or flat; and 𝄞 represents the staff on which music is written, rather than indicating any specific alteration to a note's pitch. Understanding these distinctions is essential for reading and interpreting sheet music accurately.