#1
All I know is that Metallica use the Minor Pentatonic. What about bands like Machine Head, Lamb of God, Trivium and Bullet For My Valentine use?
#2
metallica dont always use minor petatonic, just on some songs, kirks good enough not to be stuck on such a basic scale
most bands dont hold themselves to one scale
#3
Quote by stephen_rettie
metallica dont always use minor petatonic, just on some songs, kirks good enough not to be stuck on such a basic scale
most bands dont hold themselves to one scale

True dat
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