A NOTE in music refers to a pitch or tone that is used in the creation of melodies and harmonies. It is represented by a letter of the alphabet and can be either natural or sharp or flat. The notes are arranged in an octave which consists of 12 notes that repeat in successive octaves. The notes are used in combination with other elements such as rhythm and tempo to create music.' A NOTE in music refers to a pitch or tone that is represented by a letter of the alphabet and can be either natural, sharp, or flat. These notes are arranged in an octave which consists of 12 notes that repeat in successive octaves. Notes are used in combination with other elements such as rhythm and tempo to create melodies and harmonies.