Hey, this was about the only guitar lesson on "Meatplow" I could find on the Tuber...what do U guys think? Do any of you play this? If U do, do U have a lesson up somewhere? Lastly, can someone explain distortion...am I just turning knobs until I get a distinct sound? TnX this is the link 2 the lesson
https://www.youtube.com/watch?v=SEPqx5w4C1U
Oh, there's pedals? Can U explain both then...especially the pedal cuz I'm new 2 the Guitar World even though I have tried 4 many years & know nothing about pedals...
Okay, so I used to have to answer this question when I worked at a musical instrument store, so I will give it a shot.
Distortion is often a catch-all term that people use to describe a guitar tone that isn't 'clean.' There can be varying amounts of distortion, and some people might refer to it as 'overdrive' or 'fuzz.' These terms actually carry meaning beyond 'distortion,' but for our purposes, to begin with, let's just think of it all as distortion.
First, let's start with what 'clean' is. A great example is Jeff Buckley's version of Leonard Cohen's Hallelujah (
https://www.youtube.com/watch?v=y8AWFf7EAc4). There are other effects (or sounds) on the guitar, but you'll notice it has none of that fuzzy-type sound you're hearing on a song like Meatplow. This sound is almost acoustic in nature.
Original guitar amps weren't built to distort, but they were powered by vacuum tubes. When you turned the volume of the amp up and started really working those tubes, the amps would naturally distort. People would probably call THAT sound 'overdrive' today, but it's apt--you're 'overdriving' the amp and creating natural distortion. In other cases, to avoid turning the amp's volume really high (or in tandem with it), guitarists began modifying amps or damaging them--even would poke holes in the speaker cones--to get them to distort the sound.
Today, distortion is mostly built into guitar amplifiers. Here is a quick, short demo of Fender's EVH 5150 III 50-watt amplifier. The first thing you hear is a 'clean' sound, then he switches channels to a 'distortion' sound. The amp has three channels, clean, distortion, and more distortion (
https://www.youtube.com/watch?v=Xzu0Mxi7vcU). Typically nowadays there is a 'master volume' that controls the overall volume of the amp. On older amps, you had to play louder to get any distortion. Today, there is a different not usually labeled 'gain,' 'volume' (as opposed to master volume) or 'pre-gain.' Sometimes it will have more than one of those along with a 'master volume.'
However, distortion can now be achieved in many ways beyond just the amplifier. Maybe you use the clean channel on your amp and a footpedal that provides a distorted sound. There are countless versions of those out. Maybe you use a somewhat overdriven or distorted sound on you amp and then supplement that with a footpedal. The options are nearly limitless. I mentioned the word 'fuzz' earlier. While overdrive refers to the sound of an older amplifier being pushed and distortion usually refers to lots of distortion, like on Meatplow, 'fuzz' refers to a particular type of sound. Jimi Hendrix regularly used a 'fuzz' pedal to distort his sound.
For me, I have an original Peavey 5150 that I use for harder rock, because that typically uses a more distorted sound. That is a beast to lug around though. So I also have a workhorse of an amp, a Fender Deluxe Reverb. It has a beautiful 'clean' sound, but if you turn it up past 7/10, it has a beautiful natural, lightly distorted sound. I can supplement that with a Boss OD-3 overdrive pedal to a get a sweet, bluesy, classic-rock-style sound. And if the gig is intimate and I want to be able to do any kind of sound, I also have a Boss ML-2 that I use with the Fender amp to get lots of distortion. I have all kinds of sounds at my fingertips with one small amp and a few pedals.
Then things get more complicated, because while some pedals provide overdrive or distortion, many provide other 'effects.' Popular ones are delay, reverb, chorus, flange, phase shifter, octaver, and so on and so forth. That's a whole other can of worms.