This may have already passed the radar of those on this site, but there's a great "bardcore" scene around on the intertubes at the moment, converting popular music into a more medieval (I expect ahistorical) style. At any rate, this channel has taken things a step further, and redoes the lyrics in (apparently) period-correct languages and dialects, creating some of the best things I've heard musically (possibly just in general) all year.