Susan, isn’t it crazy how even with “minimalistic” music like Kraftwerk’s, it is still possible to hear new things each time? I love it when music is able to do that. I think your comment about how music can be crowded at times is an important reason for how it is possible to notice more sounds in a song- when the song isn’t too crowded. I like how on Autobahn they added vocals, yet used a vocoder to make them sound unique. I think that their music was able to sound fresh, as you describe, largely due to their custom instrumentation and technological developments. Also their mindset must have been very different from most people’s in society at that time, which made it possible for them to be so innovative.