Im learning Laid to Rest from Lamb of God and the bpm is 140. The thing is that I cant play up to that speed so should I go to 60 bpm or whatever tempo? Also how would I use the metronome to this song, Im suppose I dont play the riffs in quarter notes and then eight notes and triplets and the sixteenth notes? Correct me if Im wrong, so this is my first song Im actually using a metronome to help me get better so thank you for your help guys.