Okay, I finally got it done.
This is a collection put up by someone (I don't have his name anymore) a couple of years ago, at least. It contains German hits from 1910-1945, organized by year. It's all popular music, so very little political content. There is also a folder titled 'Extras', which contains 'Tipperary' and 'J'attrendai' along with a version of 'Bye Bye Blackbird' with words jabbing at the British Empire. Interestingly, there is a version of 'J'attredai' in German, sung by a guy, in one of the folders (1938, I think).
I included a little readme about installation, because there are a couple of different ways you can do it. It's a lot of music, and it's all period, and it all fits.
Have fun.
http://hosted.filefront.com/SailorSteve/