>>/39924/
> What's the name of that genre.

That would be psychedelic music bernd. 

https://en.wikipedia.org/wiki/Psychedelic_music

https://en.wikipedia.org/wiki/Psychedelic_rock

Try looking into bands like Pink Floyd, Janis Joplin, Jimi Hendrix. Here's a big list of recommendations

https://en.wikipedia.org/wiki/List_of_psychedelic_pop_artists

https://en.wikipedia.org/wiki/List_of_psychedelic_folk_artists

https://en.wikipedia.org/wiki/List_of_psychedelic_rock_artists