A Aeolian is a common mode, especially since it corresponds with C Ionian. Aeolian is the 6th mode. A Aeolian was the first mode, even before Ionian that I got down and mastered playing on my 6 string. Unlike the pentatonic scale, modes have 2 additional notes than the 5 note pentatonic scales. A aeolian is frequently played, at least starting on the E string around the 5th fret, though one could shift up to the 17th fret, or they can start on a different string and even start with an open string on the A string. Aeolian is one of my favorite modes, I really like the feel of it—which helps me orient my ideas and express whatever it is that is so complex about my ideas that abstractly are rendered into musical mediums. All in all Aeolian is a cool mode to use, especially A Aeolian.
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