Way-back machine from a parallel universe

I don't know a lot about this man, he was supposedly born in 1905 from an American dad and a Romania mother. It seems he found a kind of time machine which allows him to record songs with a tape recorder, before the technology was invented! Using this, he can also steal songs from famous composers, before they wrote them!
The sound archive of this strange man called Joseph K had been discovered and his work is published here.