This is a metal song played on one fret
Here's how you can shred by barely moving your fingers
You might see guitar players running their fingers up and down the neck to create a cataclysm of noise but it looks like that's all for show, as apparently you only need one fret for a decent metal tune.
YouTuber Rob Scallon (who you might remember from playing Metallica backwards) has written a song using just the fourth fret... and a lot of bends. Sure, it's not as intricate the djent bands with eight strings and 12 minute songs, but this is pretty impressive and better than we could do.