I'm not entirely sure if this question would be to broad. But say there is a chord progression in A minor. The key I have to play in would be A aeolian wich resolves to the following modes:
iA Aeolian (minor)
iiB Locrian (minor)
IIIC Ionian (major)
ivD Dorian (minor)
vE Phrygian (minor)
VIF Lydian (major)
VIIG Mixolydian (major)
Now I know I can break the rules and play the relative major. Understandable because these are the same notes. From research I also saw I can play in the parallel key, which resolves to A major.
Am I limited to the notes in this scale or can I use more scales? I hear some people talking about taking notes from the Chromatic scale, but these contains all the notes from one note to another in the next octave. This doesn't make sense to me.
For an example I found a song by Pantera; Cowboys from Hell. This is tuned in Standard E. The notes, therefor chords of the intro riff are E, G, A, A#, B, D.
This fits in the D major key, as this site says when checking for the key.
However, when looking at this
A# note. This is not in the D minor key. But is seen as the
augmented 5th as the intervals. Can I still use this note in this key? How does this work? This note is however in the D minor key.
Also, when looking at the solo build up in the tablature below, there are a few notes that don't fit in the key or parralel key: A, D# and G#. Where do these notes come from?
Can I use more scales belonging to
D major? When can I use the harmonic minor scale as an example?
When checking for the scales in my guitar pro software. It says that the riff uses the Blues Minor Hexatonic scale. When can I use this? There are so much. Can't I just lookup scales which belong to this scale and play that?