What are the three kinds of accidentals that you may find in a piece written music These markings will alter pitch any note they proceed?

There are three main types of accidentals: sharps (#), flats (b), and naturals (♮). Sharps raise the pitch of a note by one semitone, flats lower the pitch of a note by one semitone, and naturals cancel out any previous accidental applied to a note.

Double sharps (𝄪) raise the pitch of a note by two semitones, while double flats (𝄫) lower the pitch of a note by two semitones.