The title says it all.

I'm French, I know Jean-Jacques Goldman. I'm also a metalhead, I know Accept.
Those two songs came out around the same time (1981/82), and I don't know who copied who but they're blatantly similar.
I'd like to hear the voice of JJG on Accept's instrumental, that would be nice and fun. I don't really know how to proceed with isolating the tracks, and also managing the different tempos. It should work 100% for the verse since it's exactly the same riff, and the choruses differ but it should be possible too despite the key changes.

Incredible find but not able to help with the technical side of things unfortunately. Plagiarism unfortunately runs rampant in the music scene and this may be yet another case... Hopefully someone can fulfill your request.