http://web.bham.ac.uk/busbykg/kraftwerk/FAQ/recordings.html#zehn

Is the track Zehn Kleine Negerlein on the bootleg CD Toccata Electronica really by Kraftwerk?

No. Although this bootleg CD credits this track to Kraftwerk, they had nothing whatsoever to do with it. The track contains a sample taken from the Kraftwerk song Home Computer but the song is actually by a techno group called "Time to Time".