Also I wonder if this is including proper nouns and other references. (I'd think it should, but it's hard to account for the fact that referencing seven different Chris's would be counted as one token used seven times. Similarly, many words have many meanings, and those are all being lumped together as well, so no accounting here can probably ever be perfect).
If you had all the lyrics for all the rappers I think I'd - aggregate word counts - combine variations - remove most commonly used words in each language (I, I'm, You, You're, etc)
Then see who came out ahead. You shouldn't get penalized for releasing more.
You could probably do a bunch of cool analysis with that data.
edit: Oh no, there's actually a Genius API isn't there. No no no no. I have no time!
https://genius.com/Aesop-rock-time-moves-differently-here-ly...
Brother boys, Yolŋu boys, all the way from Arnhem Land
räwakpuy yindi djäl napurr dhuwal giritjinyaraw
Yolŋu balanda buŋgul go
dhumurr'yurra ŋanya marrtji go
napurr ga djälthirr
napurr dhu wiripukum walalaŋ maŋutji
marr ga manapanmirr wiripu wiripu miṯtji go
babu'yurrnha ŋanya marrtji goOne thing to note, you don't need every word on the planet to convey amazing lessons with lyrics, some of the more profound lyrics (I can't remember, but it certainly felt that way to me 15+ years ago) were by artists somewhere in the middle of your graph for me.
Just looked up Tech N9ne on there, really surprised he's in the middle. Immortal Technique more to the right with the list of people who really use an insane amount of words in their lyrics, not surprised honestly.
Edit: Just realized its the first 35,000 words... Man... this needs to do its best to get all of them. Unfortunately, there's songs by artists I can't find on ANY lyrics sites, so I fear this list will never be 100% but a close enough ballpark.
It reminds me of another great interactive rapper graph: "rappers, sorted by the size of their vocabulary":
https://pudding.cool/projects/vocabulary/index.html