The mark is a sound. The mark consists of a series of seven tones in a major key: the dominant, third, third, second, tonic, second, and tonic. The initial dominant sounds a perfect fourth below the end tonic. The interval relationship between the seven tones is ascending major 6th, unison, descending major 2nd, descending major 2nd, ascending major 2nd, and descending major 2nd. The rubato rhythmic sequence of the tones is four eighth notes, one quarter note, one eighth note, and one quarter note. In the Key of Major, the tonal pitch sequence is B, G-sharp, G-sharp, F-sharp, E, F-sharp, E. In the example octave, the pitches are B4, G#5, G#5, F#5, E5, F#5, and E5.