Harmonia may not be as well known as Kraftwerk and Tangerine Dream, but is just as essential. Its music does not have the minimalistic high tech approach of Kraftwerk nor the sequencer driven approach from the Berlin school but much of today's electronic music is tributary. Documents 1975 is not just a bonus album, it stands on itself and is highly recommended for anyone that loves Krautrock or the electronic music of the 1970s.
