This guy sums up the sampling of TD
Tangerine Dream...
Where do you start with the band that note for note, sequence for sequence, have been sampled more than any other band in history (and nearly always without credit).
It all really depends what you want to listen to, the band's music ranges from awful to awesome, they started in the sixties and have recently released an album as diverse from the norm as you can get.
go to 'voices in the net' for the most comprehensive guide of TD music:
http://www.vitn.homepage.t-online.de/index.htm
Their greatest achievements were always in the live performances, mostly improvising as they played, they experimented with all sorts of sounds and styles, they created trance and even punk sounds way before anyone else even thought the names up!.
The 'Tangerine Tree' project was an excellent history of the band's live performances, I might even upload the entire set in MP3 format for download.
RIP Edgar. I am going to miss you.