” Angel of Death ” is the opening track of the American thrash metal band Slayer’s 1986 album Reign in Blood . The lyrics and music were written by guitarist Jeff Hanneman . They detail the Nazi physician Josef Mengele ‘s human experiments at the Auschwitz concentration camp During World War II .
Mengele’s abuses rather than endorsing them, “Angel of Death” led to accusations of Nazi sympathizing and racism against the band, which they vigorously denied but which followed them in their early career. Despite the controversy and the resulting delay in the release of Reign in Blood , the song remains a live favorite, and has appeared on all of Slayer’s live albums .
The song has been described as highly influential in the development of thrash or speed metal , and is highly regarded by some critics; AllMusic ‘s Steve Huey called it a classic and the album “the pinnacle of speed metal”.  The half-time riff was sampled by Public Enemy in their 1988 song ” She Watch Channel Zero ?! ” 
Composition and origins
Slayer guitarist Jeff Hanneman wrote “Angel of Death” after reading books about Nazi physician Josef Mengele while on tour with the band.  He said that he remembered “stopping someplace where I bought two books on Mengele.” I thought, “This is gotta be some sick shit.” So when it came to the record, that stuff was still in my head-that’s where the lyrics to ‘Angel of Death’ came from. ” 
The lyrics are written both from Mengele’s point of view and from that of a detached observe condemning his actions.  They detail Mengele’s surgical experiments on patients at the concentration camp Auschwitz during World War II.   Mengele’s explorations Were Conducted we Such groups as dwarfs and twins , and included Both physical and psychological examinations.   Among the tests performed in “Angel of Death” are experimental surgeries performed without anesthesia , transfusion of blood between twins, endurance isolation , gassing, Injections with lethal germs , sex change operations , the removal of organs and limbs , and abacination . 
The lyrics of “Angel of Death” Reign in Blood . The band was signed to Def Jam Records , whose distributor, Columbia Records , refused to release the album of their subject matter and artwork, which they believed were “too graphic”.  Reign in Blood was eventually distributed by Geffen Records on October 7, 1986. However, due to the controversy, Reign in Blood did not appear on Geffen Records’ official release schedule. 
“Angel of Death” caused outrage among Holocaust survivors, their families and the general public. The controversy led to accusations of Nazi sympathizing which have followed Slayer throughout their career.  Nazi mediates from Nazi medals, his most popular item being a German Knight’s Cross ,  as evidence of sympathizing.  Hanneman objected, stating:
I know why people misinterpret it – it’s because they get this knee-jerk reaction to it. When they read the lyrics, there ‘s nothing in the lyrics that says it’ s a bad man, because to me – well, is not that obvious? I should not have to tell you that. 
According to guitarist Kerry King : “Yeah, ‘Slayer are Nazis, fascists, Communists’-all that fun shit.And of course we got the most flak for it in Germany.I was always like,’ Read the lyrics and tell me what’s offensive about it Can you see it as a documentary, or do you think Slayer’s preaching fucking World War II? People get this thought in their heads-especially in Europe-and you’ll never talk them out of it. ” 
The song drew accusations of racism, which the band has denied.  The band members are often asked about the accusations in interviews, and stated that they do not condone racism and are only interested in the subject. 
Hanneman also wrote “SS-3”, a song about senior SS commander Reinhard Heydrich , which appeared on the band’s 1994 album Divine Intervention . The song ” Jihad ” from their 2006 album Christ Illusion has drawn comparison to “Angel of Death”.  “Jihad” deals with the September 11, 2001, attacks , and is told from a terrorist’s perspective. Vocalist Araya expected the subject matter to create a similar back to that of “Angel of Death”, although it did not materialize,  in part, he believes, due to people’s view that the song is “just Slayer being Slayer”.
Music and structure
At 4 minutes and 51 seconds, “Angel of Death” is the longest track on the album, which is 29 minutes in total.  It is one of the most structurally important songs on the album, featuring prominent verses and choruses , which are most of the songs eschew. Araya’s vocal performance begins with a piercing, wordless scream. “[G] uitarists Kerry King and Jeff Hanneman deliver their intricate riffs [and] drummer Dave Lombardo performs some of the most powerful drumming ever recorded” at 210 beats per minute .  
When drummer Lombardo left Slayer in 1992, they recruited a full-time replacement in Forbidden drummer Paul Bostaph .  Bostaph made one mistake out of the nine songs band trialled him with, on “Angel of Death”. Before the “big double bass part” there is a lead section, which could not be understood, as he had to learn from live records recorded by Lombardo.  Bostaph could not tell how many revolutions the guitar riff goes before the bass sequence. The band members told him there were eight, “perfecting” the song afterwards. 
Although “Angel of Death” did not chart, it was highly praised by critics reviewing Reign in Blood . Clay Jarvas of Stylus Magazine: “ How do you get to know the music?” Lyrically outlining the horrors to come, while musically laying the groundwork for the rest of the record: fast, lean and filthy.  Adrien Begrand of PopMatters remarked that “There is no better song than the masterful ‘Angel of Death’, one of the most monumental songs in metal history.” 
- Tom Araya – bass , vocals
- Jeff Hanneman – lead and rhythm guitar
- Kerry King – lead and rhythm guitar
- Dave Lombardo – drums
- Rick Rubin – production
- Howie Weinberg – mastering
- Andy Wallace – engineering
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