Octatonic scale out, the cascading arpeggios played on the celesta in the "Sugar Plum Fairy" from "The Nutcracker" ballet are made up of dominant seventh chords a minor third apart. "Hagens Watch", one of the darkest and most sinister scenes in Richard Wagner's opera "Götterdämmerung" features chromatic harmonies using eleven of the twelve chromatic notes, within which the eight notes of the octatonic scale may be found in bars 9–10 below:] The scale also may be found in the music of Claude Debussy and Maurice Ravel. Melodic phrases that move by alternating tones and semitones frequently appear in the works of both
Major scale semitone (i.e. whole, whole, half). The major scale is maximally even. \override Score.TimeSignature #'stencil = ##f \relative c' { </score> The scale degrees are: \override Score.TimeSignature #'stencil = ##f </score> The triads built on each scale degree follow a distinct pattern. The roman numeral analysis is shown in parentheses. If a piece of music (or part of a piece of music) is in a major key, then the notes "in" the corresponding major scale are considered "diatonic" notes, while the notes "outside" the major scale are considered "chromatic" notes. Moreover, the key signature of the piece of music (or section)