An Unresolved Argument on Cultural Appropriation

There are these two things I geek out over, and I want to mash them up.

But I am concerned about cultural appropriation, and I'm hoping some genorous readers can help me sort this out.

The first part of this proposed mashup is not controversial. I play Dungeons & Dragons.
As hobbies go, it's a tad geeky, but less so today. It is certainly less controversial than it once was.

So, yeah. The D&D stuff is not what I'm concerned about.

Here's where I get into uncertain territory. 

I have been developing a playable D&D world based on ideas, characters, and philosophies presented in the songs and album art of Parliament and Funkadelic.

Some Background
World building is a big thing in D&D. If you're unfamiliar, think of any big fantasy or science fiction world: Lord of the Rings, The Handmaid's Tale, Zelda, Star Wars, Dune, Wheel of Time, Marvel, DC, or Earthsea. All of the stories told in those worlds depend on strong world building.

In D&D, people running a game have an opportunity to engage in world building, giving players a unique place to develop the characters they play.

In the world I've been building, the moral alignments (typically Good, Evil, Chaotic, Lawful) are inspired by the music of George Clinton's bands. The pantheon of deities is populated by characters like Dr. Funkenstein and Rumpofsteelskin. The names of various dimensions in the world are based on places and settings the bands sing about. 

It's been a labor of love.

I discovered the band Parliament in 1996. 

This led me to Funkadelic, and then on to The Gap Band, The Commodores, The Ohio Players, Darondo, Sly and the Family Stone, The Bar-Kays, The Meters, Zapp, and so many more.

The groundwork had been laid long before I first heard Flashlight. 

I got into the Talking Heads well before I learned that collaborating with Bernie Worrell had provided the band with so much of their groove. I was a teenager during the Golden Age of hip-hop. James Brown was a fixture in my CD collection in high school, and my folks played a lot of Motown while I was growing up. 

But there was something about Parliament that drew me deeper into the genre of funk. If you've ever listened to the band, no further explanation is needed. If you haven't, I'll just say this much here: The bands' music transports you into an alternate reality where the power of funk is a mystical force that combats boredom and the uptight. There is a wonderful and rich mythology built up in the songs.

The Conflict
I'm a white guy, and Parliament-Funkadelic is a brilliant creative result of African American culture.
Now, I know it is not cultural appropriation for me to enjoy the music of Parliament and Funkadelic.
But what about when I take the ideas from the music and use them for my own creative endeavor?

I'm not going to make any money running this D&D world, and I plan to be completely transparent about the inspiration. It's an homage.

But that doesn't change the fact that I am using ideas that emerged from African American culture to build my own creative setting.

I'm not helped by a certain lack of diversity in Fantasy and role-playing games. For example, that alignment chart I included up above? Pretty white, huh? I went looking for one that included more cultures. Not much luck.

Where does that put my efforts?

I cringe when I hear my inner voice say, "This doesn't feel racist."
That's a thing racist people say.

Nevertheless, playing D&D in a world where Sir Nose D'voidofFunk is in a cosmic battle with Star Child feels right to me.

The Request
Could you help me figure out if my efforts are honoring the work of these artists or if those efforts are trying to claim their work as my own?

I want to be honoring the makers of this music I love, but I'm too close to this project to be an effective judge.

If I am on the wrong side of the line, is there something I can do, or do I drop this?

Any response is welcome.