Like what the other comment said, it'd be cool if you could be different species.
Imagine a species where you have a prehensile tail, gain an inventory slot for it, and can hold items with that tail.
Or even use your tail to shoot guns..
True, and true. I didn't think any further beyond the spontaneous idea, and commented it to cement it in history before I ultimately forget about it forever lol (I didn't even know if there's such thing as an API providing song lyrics, but it's cool that there is)
Buut, if you were to implement it I was thinking it would be simple, Expie singing snippets of the lyrics and adding '...' at the start and end of the dialog e.g ('...cold cold heart, hardened by you...'), instead of the whole song.
You've got me thinking though, making them sing the whole thing would mean streaming/animating the text in time with the track that's playing, in addition to all that. And also audio recognition.
I think if you really wanted it, you could also just use preset ingame songs and stream the lyrics annotated to them.
I checked the Genius API docs, I'm pretty sure you could just parse the json's DOM format to get the lyrics plaintext then use it ingame
TLDR; I'm just obsessed with the game, and potential ideas you could use for fleshing out the presentation of the characters in it's world (which the dev has done a wicked job of, especially through gameplay mechanics), to the benefit (and detriment..) of the player.