sweetdude3000

I know technically a power chord is really not a chord, but a fifth and sometimes an octave.

I see some tabs and hear sometimes 2 or 3 note power chords.

Maybe I shouldn't sweat over it, but I'd like to know if anyone had thoughts on when bands usually use a two note powerchord vs a three note powerchord. Like Iron maiden or Black Sabbath for instance.

EmilGD

That is entirely situational, to the point that they might even play it differently during the course of the same song. You just have to use your ears and try to hear the difference, basically the octave makes the sound a tad more full. But don't use too much energy on it, there are more useful things to focus on.

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shoegazer'

Not having the octave sometimes alters the chord completely and the higher note becomes dominant. If you're playing a chord on the D string and just use two notes you will notice this.

PSimonR

Older bands, many play the full barre chords, because that is what was taught. I think, technically, a chord is simply more than one note, so a 5th chord, the so called "power chord" is a real chord. When a violin plays chords, it is usually only two notes. The octave, you get this with two strings anyway since you get the octave note from the (first) harmonic of the root.

BUT you are correct, don't sweat over it, play what you think sounds best.

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PSimonR

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KG6_Steven

Technically, from a theory standpoint, a chord is a triad - or three, or more, pitches. By this accepted definition, a power chord is, technically, not a chord, however we still refer to them as chords.

gunsnroses#1

the third note is simply an octave of the root note. It's the same note so you're still only playing 2 notes.

mdc

You listen to much Wes Montgomery?

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Sweet

JKHC

They're not technically chords, just an interval played harmonically. But for simplicity's sake, they're called chords.

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Nameless742

They are musically the same with or without the octave. Play what you think sounds best in the current situation.

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arabmetallion

I'm no theory guy but with heavy distortion I tend to skip the octave as do most metal bands for the most part simply because it can muddy the chord and make it sound uneven. skipping it also makes playing fast power chords riffs much easier and less tensing to play. full powerchords tend to be used for slower sustained riffs at-least from all the tabs I've seen this is pretty typical of guys like hetfield. Maiden and Sabbath are no exception though, they also tend to use 2 note powerchords

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HotspurJr

Get used to the sound of both versions, and the subtle variations between the two (sometimes you don't hit the fourth string as hard as the fifth and sixth), and make your choices based on your recognition of the differences between those sounds.

Captaincranky

No, it isn't. You need a root (1st), 3rd, & 5th, to make a triad, the most basic "chord". (Or a root, a 5th, and a 4th, or stacked 3rds or 4ths, in case anybody want's to nitpick).

Power chord" is a name of convenience or a colloquialism.

In any event, to your observation about older bands "playing barre chords", I'd like to add something.

When you play an "A open" voice barre, you don't hit a 3rd interval until you play the B-2, @ the 2nd fret (C#). So basically, the bottom four strings are stacked 5ths (A5), bottom to top in this order, 5th, 1st, 5th, 1st.

With the "E open barre" you only get to G-3, before you hit a 3rd.

This includes both minor variations as well.

Anyhow, that's what I was taught as well, with the added insight to "lighten up and miss the top two strings" while strumming. It's perhaps fudging the concept a little, but the "power chord" is the underlying philosophy.

chronowarp

what about bands that add a fifth below when they play power chords on the A string

*MIND IS BLOWN*

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mdc

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Sweet

Captaincranky

As I pointed out above, all that is required to play "the 5th below" is to not bother missing the E-6(*), when playing the A open barre voice.

I just wanted to mention that erstwhile someone's mind may be, "blown", it really doesn't pertain to me.

chronowarp

My Mind
Is
Blown

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Captaincranky

Oh sorry, condolences...

KG6_Steven

Technically, we call that learning.

Captaincranky

My how terminology has changed over the "eons". 'Cause in the olden days, we used to call that "being stoned", either with or without extemporaneous sensory overload...