Technically, it takes three notes to make a chord, not two. Two notes together would just be called “harmony” or whatever the interval is (i.e. “a fifth” or “an octave”).
To the OP: Just remember that every fret on a guitar is equivalent to a half-step (the smallest interval that we use) on the piano. So if I wanted to play every half-step on the piano I would play every single note on it, black and white. So like neuroman said, going from a natural chord like “A” to a flat chord like “A-flat” simply means moving everything down a fret, and going sharp just means you go up one fret.
Thanks for the replies. It makes sense that the half step between G and A would be either an G# or A-flat.
Is there something else I’m missing, though, because it really doesn’t sound right. What I’m fiddling* around with is playing D-A-G open chords and then moving to the same progression as power chords, but the A-flat seems off.
Just to make sure that it’s not the open A-flat that I’m screwing up, here’s what I’m playing:
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Thanks again. I’ll include all of you in the liner notes of my first blockbuster album.
The notes in an A major chord (“A”) are A, C#, & E (1st, 3rd, & 5th notes of an A major scale.)
The notes in an A minor chord (“Am”) are A, C, & E (1st, flatted 3rd, & 5th notes of an A major scale).
The notes in an A “power chord” are A & E (1st & 5th notes of an A major scale).
As you can see, the difference between A and Am is between a natural 3rd note of the scale and a flatted 3rd note of the scale. Since the power chord eliminates the 3rd note altogether, it has neither major nor minor characteristics.
The notes in an Ab major chord (“Ab”) are Ab, C, & Eb (1st, 3rd, & 5th notes of an Ab major scale).
The notes in an Ab power chord are Ab & Eb (1st & 5th notes of an Ab major scale).
I don’t know what you’re playing, but it’s very common to have the chords D, G, & A in a song, either in the key of D or the key of A. It’s also fairly common to have the chords D, G, & Am in a song in the key of G. It’s quite uncommon to have the chords D, G, & Ab in a song. Are you sure you want the Ab and not the A or Am?
The part in bold is what I’m trying to figure out.
Thanks for the help and the crash course in music theory.
Hopefully, the tabs show up in Courier New so they’re legible. Otherwise, cutting and pasting them into a word processor using a monspaced font will help.
Yes, and all six strings can be played (they’re all A’s, C#'s, or E’s).
Yes, and again all six strings can be played (all A’s, C’s, or E’s).
Yes, if playing only the three fretted strings, which are A’s or E’s.
Yes, if playing only the three fretted strings, which are Eb, Ab, & C (not normally done, in my experience – other forms of Ab are what I usually see).
Yes, if playing only the three fretted strings, which are Ab’s and E’s.
It is an Am chord. According to the definition here ( http://www.free-definition.com/Power-chord.html ) and others’ comments above, there is no such thing as a minor power chord. As soon as you add a 3rd or a flattened 3rd, it ceases to be a power chord.