Thanks for all of the tips, don't worry about "divebombing" into modal theory, I do know a lot about it already (I took a music theory class) I just haven't learned to connect it to guitar as of yet. Someone said earlier about what scale tones to use over fifths, which is actually one of the questions I wanted to ask but didn't think of at the time. What I gathered from music theory was to play in the same major or relative minor key as the chord progression implies. Which, for example, in a major key would be the I, IV, V as a well known progression. This doesn't really explain the usage of scales over power chords, which don't have the third to imply major or minor tonality, or even some modified chords that omit the third so the chord doesn't come out sounding so muddy with distortion. i.e D7(no3). Or the ever popular (in heavy metal) minor thirds that omit the fifth.
Another tangent: What do you usually write first, the heavier low end power chord riff or the single note maybe harmonized melody above it? I find it easier to write the lower end first, then to build the melody above that to create the real melody of the song, to give it its unique flavor from just some palm muted power chords.
Actually here's a chorus from a song that I've written, maybe one of you guys can analyze it for me
Tune both guitars down 2 steps to (C)
Guitar One
|--------------------------------------------------------------------------------|
|--------------------------------------------------------------------------------|
|--------------------------------------------------------------------------------|
|-------------------4--------------------------------------------4--------------|
|--2------ 0-------2--- 5------ 3-------5-----2------ 0------ 2----5--------|
|--0-000-2-222----0-3-333-5-555-7-77-0-000-2-222----0-3-333--|
*** *** * *** *** ** *** *** * ***
Guitar Two
|---------------------------------------------------------------------------------|
|---------------------------------------------------------------------------10---|
|--9--------9h11h12p11p9h12p11p9h12p11p9----9--11--12---------|
|---------9-----------------------------------------------9----------------------|
|---------------------------------------------------------------------------------|
|---------------------------------------------------------------------------------|
Guitar One (continued)
|--------------------|
|--------------------|
|--------------------|
|--------------------|
|--7--------4-------|
|--5-555--2-00---|
Guitar Two (continued)
|------------------------------------------------------|
|------------------------------------------------------|
|-11-9-7-9~-----12-12-12-14-14-14-16~----|
|--------------------x---x---x--x---x---x---x-------|
|-------------------10-10-10-12-12-12-14~----|
|------------------------------------------------------|
Note: The way this is tabbed is screwy, I can't get it to look right in this forum, the second guitar part is played much faster then the first, so that the last octaved run is in sync with the end of the first guitar part.