Check out MuggleNet Academia Lesson #41: "Lightsabers and Wands"! If you listen, I hope you enjoy.
I should mention that some of my comments on "Rey's Theme" from John Williams's score for The Force Awakens were inspired by the insights of the brilliant David W. Collins on Rebel Force Radio's "Oxygen Vol. 25: The Music of The Force Awakens, Part 1." Highly recommended!
Note: I'm still recovering from my recent illness, so I've fallen behind in my replies to comments. I'll be catching up soon!