i need some good rare experimental electronic german music. where can i find it?

i need some good rare experimental electronic german music. where can i find it?

https://www.youtube.com/watch?v=CPdE01SoOBQ
Получай, фашист, гранату!

>>16021 (OP)
https://www.youtube.com/watch?v=GX5m_V6PhVM
Mort Garson - The Wozard Of Iz: An Electronic Odyssey (full album)
https://www.youtube.com/watch?v=4OT3400Y7t4
Ernst Krenek: Pfingstoratorium (Spiritus Intelligentiae Sanctus) op. 152 (1955)
https://www.youtube.com/watch?v=3P6JQ2pmVKU
Voice of the Computer 01 M.V.Mathews - Masquerades
https://www.youtube.com/watch?v=pziu8pkuiyQ
Günter Maas Variationen Electronic Music 1967
https://www.youtube.com/watch?v=koMydPxwmcE
The Zodiac - Cosmic Sounds 1967 [Full Album]
https://www.youtube.com/watch?v=tpcOA8TT6xM
NEU! - E Musik
https://www.youtube.com/watch?v=lLkjZtqhPUk
Kraftwerk - Kohoutek-Kometenmelodie

>>16021 (OP)
https://www.discogs.com/search/?type=all&title=&artist=&label=&track=&catno=&barcode=&anv=&format=&credit=&genre=Electronic&style=Experimental&country=Germany&year=&submitter=&contributor=&matrix=&advanced=1