Greetings!

The killed is because you ran out of free RAM. Do a swapon /swapfile before running and a swapoff -a after it completes. There are just too many songs for it to store in RAM without having trouble.

As to source availability, I do not know if it was ever officially posted. I requested and received the source directly from the author. I had intended to add some additional functionality (configurability with command line options, etc.), but never got around to it.