something that lamb of god uses everyday...
ok tremolo picking is done when you pick a string very fast with up and down strokes
Yes, or talking about finger picking, for more "classical" musicians, it is playing the same string very fast alternating with the index, medius and ring...
Quite useful technique for flamenco players for instance
Alternately picking at speed.
Creates a cool sounding effect, takes some practice to get fast - but don't give up!