Musically it can be described by the following. Composed using forms of the power chord, or a fifth chord lacking a third, in a moveable form based normally on the low E chord. Since these chords lack a third, they are neither major nor minor, and can be played in any position, which lends itself to writing longer, more dynamically melodic or lengthier phrasal riffs. Musically heavy derived from a songwriting style that emphasizes a return to unison after a resolution of motifs. The promenade style riffs and theatrical conclusions of metal songs derive from this need, which forms a heavy emotionally significant moment later in each song. Dark subject matter, and use of heavy distortion, vocal distortion, intensely fast or slow tempos, and other ways of converting that which appears noisy and ugly into a musical language, as if attempting to find beauty in darkness. Familiarity with the past musical language of metal riffs and imagery, and ability to build on it, both musically and ideologically. A preference for cadence where rock bands would use rhythmic expectation in the pattern of syncopation extended to the beats themselves. Although metal beats are syncopated, this is used internally within cadenced beats and reduces drums to a constant or timekeeping role which ends phrases on the downbeat. Emerging from the ruins of rock music, heavy metal grew from the conventions of that genre, which possessed an international flair in its use of Anglo Celtic song structures, European music theory, Middle Eastern and Asian scales, an Arab instrument converted by Spaniards and electrified by Americans, and timbral singing from Africa. These remnants were tempered by a tendency toward progressive rock song structures which approximate those of European classical music the rhythms of garage punk bands, which come from the first two guitar lessons of an aggressive teenager and finally, the thematic tendencies of horror movie music, which are generally borrowed from Modernist and Romantic era classical composers such as Anton Bruckner, Richard Wagner, Camille Saint Saens, Johannes Brahms, Robert Schumann and Ottorino Respighi. The traits of this modernist music mobile fifths, unison, thematic repetition with inflected motifs, layered harmony and inversion extend heavy metal beyond its classical roots but also step further backward in time toward the origins of Western music, in that by liberating itself harmonic structures used to identify scale, it returns to the modal, melodically structured, narrative compositional form originally pioneered by earlier civilizations like the ancient Greeks. When classical music emerged from the rigor of Baroque styling, and ventured into the theoretical but passionate world of the Romantics as defined by Beethoven, it reached a height that demanded a further gesture to continue its artistic specialization. The final point of departure was to liberate melody from the intricate harmonic structure of Romantic music and in doing so to make melody more than harmony the leading compositional tool, so that pieces were defined by the evolution of melody instead of strictly harmonic structure. In this form, which resulted in music that tended toward a nearly chromatic base scale with motifs clustered around it in varied modalities imposed on contact points in that progression of tones, the narrative method of composition reached its most flexible voice. Music became more motif driven, spurred on by the leitmotifs of Richard Wagner, and united a juncture of music, narrative, theatricism and architecture Bruckner famously referred to his works as sonic cathedrals in which it evolved to within a step away from becoming the rigorously correlated drama, ritual and music of the Greek theatre. Heavy metal inherited all of this through a modern form because of its desire to escape the cognitive dissonance reaction to modern life. In part, this impulse comes from the metalhead who realizes that the individual is basically powerless, except in a future time when predictions about the negative nature of modern society will come true. Of course, in the now, parents brush that aside and go shopping, stockpiling retirement funds so they can carelessly wish their children a good life before disappearing into managed care facilities with 2. A more fundamental part of this dissident realism is creative. People who see most of society going into denial because they cannot handle their low social status, the dire future of human overpopulation and industrialization, and the negative motivations hiding beneath social pretense, aka cognitive dissonance, will often mourn most for the opportunities lost when people value putting their heads in the sand more than finding beauty in life. It is the convergence of these ideas that creates the violent and masculine but sensitive, Romantic side to metal it is a genre of finding beauty in darkness, order in chaos, wisdom in horror, and restoring humanity to a path of sanity by paying attention to the heavy things in life that, because they are socially denied, are left out of the discussion but continue to shape it through most peoples desire to avoid mentioning them. This same principle underlies classic European and Greco Roman art and music, the idea of an aggressive and warlike but wise and sensitive motivation that is both religious and scientific, peaceful and belligerent, because it understands a principle of order to the universe and asserts it because it is beautiful in that it is a meta good, or the harmonious result of darkness and light in conflict. For this reason, it is not moral in the sense of judging as good or evil, and neither fits into the hippie peace, love and hedonism approach nor the conservative, market bound ignorance is bliss smoke and mirrors of mainstream music and bourgeois art. Unlike any other musical principle, the one thing that unites the varied borrowings from baroque, rock, jazz, blues, folk, country, classical and electronic music that form heavy metal is this Romantic principle of doing what is right not in a moral sense to the individual, but in a sense of the larger questions of human adaptation to the universe, the conceptual root of heavy in metal and what throughout history has been called by a simple syllable vir, the root of virtue in a sense older than a modern moral interpretation as chastity.