For many years the first address of the tangonet world.
Helpful for my bookkeeping:
Recording data, sources, tango lyrics and much more.
Huge collection of material on the subject of acoustic technology,
a passionate plea for better sound quality.
Jens-Ingo’s Tango DJ
A manifold, with historical illustrations richly illustrated
blog of a very ambitious DJ.
Older archive articles with audio examples and expert discussions
about good music are still worth reading. (german)