I've been thinking of this for a long time and I can't figure it out so i was hoping you guys could help me. How fast(in bpms) must you play to call it shred?
i think shred is more about the tonality of the music more than the actual speed. Hi gain harmoic minor etc etc. But it hink most "shred: bands play around 146 bpm with 16th notes.
There is no real threshold. It is much more the style at which you play. A few lighting fast fills may not classify a person as a "shredder", but if you spend a whole song sweeping, even if it slightly lower, more may consider it shred.