I have a question regarding chord theory. Let's say you a reading a chart that is based in C major. While you are playing along with this chart, you come across a chord with an extension, such as Emin9. My question is, do you play the ninth as a F, or an F#? Because if you look at things at a modal perspective, the an E chord would be based around a phyrgian structure (which means the F would be left natrual, as is the F of C major) But normaly, if an E minor wasn't based out of a phyrgian format, the E would have a raised F. So how would I look at this? Would I treat the chord as if it were based out of the 3rd mode of the chordal center. Would I play the 9th as if the chord was based on Aeolion, or would the chart designate an accidental if it wanted the 9th raised? Thank you for your great wisdom of the sacred bass.