If you are ready for a time-suck internet experience that will also make you feel slightly old and out of step with the culture, feel free to dive into Every Noise at Once.
This is an ongoing attempt at an algorithmically-generated, readability-adjusted scatter-plot of the musical genre-space, based on data tracked and analyzed for 1,536 genres by Spotify. The calibration is fuzzy, but in general down is more organic, up is more mechanical and electric; left is denser and more atmospheric, right is spikier and bouncier.
It's also egalitarian, with world dominating "rock-and-roll" given the same space and size as its neighbors choro (instrumental Brazilian popular music), cowboy-western (Conway Twitty, Merle Haggard, et. al.), and Indian folk (Asha Bhosle, for example). It also makes for some strange bedfellows: what factor does musique concrete share with "Christian relaxitive" other than "reasons my college roommate and I never got along." Now you can find out!
Click on any of the genres and you'll hear a sample of that music. Double click and you'll be taken to a similar scatter-plot graph of its most popular artists, this time with font size denoting popularity and a similar sample of their music.