Proto-metal

Proto-metal (or proto-aggressive music, heavy rock) is a musical genre of classic rock that so applied to a number of musical groups, active in a certain recognizable historical period in the late 1960s in the United States and the United Kingdom. that they were considered precursors important and inspiring of the heavy metal. With rooted in blues rock, acid rock, garage rock and psychedelic rock.

The musical origins of heavy metal can be found within blues rock, hard rock and psychedelic rock movement that who particularly among those all time rock bands that had difficulty adapting their sound to that of best classic American blues. During this period, rhythms became more essential, and amplified electric instruments began to gain importance, especially thanks to the innovations of the true early acid rock bands.

These garage rock bands, some of which often influenced by blues rock and classic rock (Cream, The Who, Yardbirds), made the sound is so noisy that it would later define, proto-metal is a genre of rock music that characterized by the use of very heavy distorted electric guitars, very virtuous bass, fast drums and a more powerful vocal style characterized by loud screams and voices as a sign of transgression and transcendence. In this period, the use of power chords was also widespread, and more complex and all exploratory guitar solos.