Originally Posted by Paddy

I suck so bad at this, I'm still none the wiser hahaha.

On UG a tab of mine received a comment about this. Here's the tab (MT version):

http://metaltabs.com/tab/13943/ (it's at 120 BPM here, 4/4 time)

The comment was as follows:

I kinda know what he means, but at the same time I haven't a fucking clue. I know he means I should half the tempo and then half the duration of every note in the tab so two bars' worth of notes fit into one, but I don't know why or when I'm supposed to use one tempo instead of another.