Category
page 1Seconds (music)

semitone
In Western music theory, a semitone (also called a half step or half tone) is one of two parts into which a whole tone is divided. Semitones appear as the smallest steps in chromatic scales (which divide the octave into twelve semitones), arising on keyboards between the pitches of two adjacent keys. For example, C is adjacent to D; the interval between them is a semitone. Semitones are among the most dissonant intervals when sounded harmonically.
ninth
musical interval spanning nine staff positions
major second
musical interval
augmented second
musical interval
diminished second
musical interval of less than one semitone spanning two staff positions