UMM THERE IS SO MUCH YOU CAN DO....BY A TRIAD ( THREE NOTES MAKE A TRIAD )..CHORD....THAT IS WHERE YOU FIND THE EXACT MODE FOR THE SONG OR KEY....YOUR ONLY USING PERFECT 5THS
( POWER CHORDS )..THE PATTERN IS SO SIMPLE..--I WOULD PLAY G# IONIAN OVER THIS METALLICA SONG..........
AS FAR AS WHERE OR HOW TO PLAY A PENTATONIC SCALE OVER CHORDS----FIRST OF ALL.. IS IT MAJ OR MINOR?..PENTATONIC ISNT JUST MAJ...THERE IS A MIN PENTATONIC..FLATTERN THE 3RDS TO MAKE IT MINOR.. ANY METALLICA SONG IS NORMALY IN
E PHYGIAN...I FOUND THAT TO BE A VERY COMMON PATTERN OVER ANY OF THERE SONGS..ALSO LOOK AT THE ROOT NOTE PATTERNS TO PICK THE MODE..THEN DECIDE THE MODE OF THE SEVEN IN THE PROPER KEY THAT FITS WHAT YOU ARE TRYING TO SAY....ADD THAT 3 RD NOTE TO THE POWER CHORD EMBELLISH IT A LITTLE...IT WILL GIVE YOU MORE ROOM TO PLAY & PHRASE....HOPE THIS HELPS YOU OUT ....GOOD LUCK
