Hi Hunter, thanks for joining the forum.
I don’t know if anybody has tried. I guess it’s very likely.
In all these years I have never understood what last.fm is for. It’s a bit like Twitter in that regard. I know that people use it but not why.
Anyway, we have APIs for that kind of thing. Perhaps Spinitron’s metadata push can be used. It can make POST HTTP requests. Failing that, or perhaps in combination to profit from the push efficiency, you could use the REST API to get data to post to last.fm.