1. Different characteristics
Hard rock music has strong blues and psychedelic rock, and is less influenced by punk.
heavy metal music is cold and hard, and blues is not as strong as hard rock music. But deeply influenced by punk style.
2. The origin is different
Hard rock is a style of rock music developed by Bruce. The earliest rock bands such as ROLLING STONES, The WHO, BLOOD SWEAT; TEAR and others, and later LED ZEPPELIN, AC/DC, kiss, CHEAP TRICK,Guns N' Roses, etc. can be said to be hard rock bands.
The original prototype of metal music was created by BLACK SABBATH. They changed from a blues band to a heavy and savage industrial rock band, and expressed their great fear of modern life by describing a lot of metaphors in detail.
Extended information
1. Hard rock
has a strong guitar distortion, the guitar is more complicated, the lead guitar has more components, and the performance is usually very large-scale. The guitar performance is improvised and repeated in large-scale open-air concerts, and the chorus of hymns is sung.
Re-step the exaggerated tone and strong rhythm; Its purpose is usually aimed at commercial value. The representative bands are ACDC, Aerosmith, Airbourne, Alice Cooper, etc.
2. Heavy metal
Music is very "heavy", which gives listeners a sense of hysteria, which is obviously different from other music, so this music is named "heavy metal".
There are many kinds of metal music, including "melody metal" and "rhythm metal" in terms of rhythm and melody. In any case, metal music with melody is lighter than metal music without melody, and different genres of metal music use different timbres, some of which are more distorted and some are lighter.