When I was a kid I used to love listening to black and death metal. In these genres of music the vocalists do not... sing but more like growl or yell which make

When I was a kid I used to love listening to black and death metal. In these genres of music the vocalists do not... sing but more like growl or yell which makes deciphering the lyrics very difficult. But after reading the lyrics first then you can make sense what they 're saying without a problem. If you 're looking for such "audio illusions" try it yourself :)