This was the first Accept album produced by Dieter Dierks .
The lyrics describe a dystopian future where humanity's hearts are replaced by "lifeless piece[s] of steel". You can find the full lyrics, which explore themes of technological takeover and emotional loss, in the referenced web documents. Background accept_metal_heart
While aimed at the American market with a more commercial sound, it remains a fan favorite and a cornerstone of European heavy metal. Accept – Metal Heart Lyrics - Genius This was the first Accept album produced by Dieter Dierks