user: 엠퍼러에 대해 설명해 줘.

gpt: **엠퍼러**는 1991년 결성된 노르웨이의 대표적인 심포닉 블랙 메탈 밴드이다.

user: 구성원에 대해서도 설명해 줘.

gpt: ImageSize = width:900 height:auto barincrement:18
PlotArea = left:120 bottom:160 top:10 right:20
Alignbars = justify
DateFormat = mm/dd/yyyy
Period = from:01/01/1991 till:
TimeAxis = orientation:horizontal format:yyyy
Legend = orientation:vertical position:bottom columns:3
ScaleMajor = increment:2 start:1991
ScaleMinor = increment:1 start:1992

Colors =
 id:Vocals value:red legend:Vocals
 id:Bvocals value:rgb legend:Backing_Vocals
 id:Keyboards value:purple legend:Keyboards 
 id:lguitar value:teal legend:Lead_guitar
 id:rguitar value:brightgreen legend:Rhythm_guitar
 id:Bass value:blue legend:Bass
 id:Drums value:orange legend:Drums
 id:Live value:yellow legend:Live_member
 id:Studio_album value:black legend:Studio_album
 id:Other_release value:gray legend:Other_release

LineData=
 layer:back
 at:07/01/1992 color:Other_release
 at:05/01/1993 color:Other_release
 at:02/21/1994 color:Studio_album
 at:08/01/1994 color:Other_release
 at:03/01/1997 color:Other_release
 at:07/08/1997 color:Studio_album
 at:04/27/1999 color:Studio_album
 at:06/01/2000 color:Other_release
 at:10/21/2001 color:Studio_album
 at:05/25/2003 color:Other_release
 at:04/21/2009 color:Other_release
 at:04/24/2009 color:Other_release

BarData =
 bar:Ihsahn text:"Ihsahn"
 bar:Mortiis text:"Mortiis"
 bar:Tchort text:"Tchort"
 bar:Alver text:"Alver"
 bar:Tyr text:"Tyr"
 bar:Secthdamon text:"Secthdamon"
 bar:Samoth text:"Samoth"
 bar:Faust text:"Faust"
 bar:Trym text:"Trym"
 bar:Einar text:"Einar Solberg"
 bar:Jorgen text:"Jørgen Munkeby"

PlotData=
 width:11 textcolor:black align:left anchor:from shift:
 bar:Ihsahn from:01/01/1991 till:12/20/2001 color:vocals width:3
 bar:Ihsahn from:12/01/2005 till:06/30/2007 color:vocals width:3
 bar:Ihsahn from:10/01/2013 till:09/01/2014 color:vocals width:3
 bar:Ihsahn from:08/12/2016 till:end color:vocals width:3
 bar:Ihsahn from:01/01/1991 till:12/20/2001 color:lguitar
 bar:Ihsahn from:12/01/2005 till:06/30/2007 color:lguitar
 bar:Ihsahn from:10/01/2013 till:09/01/2014 color:lguitar
 bar:Ihsahn from:08/12/2016 till:end color:lguitar
 bar:Ihsahn from:01/01/1991 till:12/20/2001 color:keyboards width:7
 bar:Ihsahn from:12/01/2005 till:06/30/2007 color:keyboards width:7
 bar:Ihsahn from:10/01/2013 till:09/01/2014 color:keyboards width:7
 bar:Ihsahn from:08/12/2016 till:end color:keyboards width:7

 bar:Samoth from:01/01/1991 till:08/01/1992 color:drums
 bar:Samoth from:08/01/1992 till:12/20/2001 color:rguitar
 bar:Samoth from:12/01/2005 till:06/30/2007 color:rguitar
 bar:Samoth from:10/01/2013 till:09/01/2014 color:rguitar
 bar:Samoth from:08/12/2016 till:end color:rguitar
 bar:Mortiis from:01/01/1991 till:12/31/1992 color:bass
 bar:Tchort from:01/01/1993 till:12/31/1994 color:bass
 bar:Alver from:01/01/1995 till:08/01/1998 color:bass
 bar:Tyr from:08/01/1998 till:12/20/2001 color:bass
 bar:Tyr from:08/01/1998 till:12/20/2001 color:live width:3
 bar:Secthdamon from:12/01/2005 till:06/30/2007 color:bass
 bar:Secthdamon from:12/01/2005 till:06/30/2007 color:live width:3
 bar:Secthdamon from:10/01/2013 till:09/01/2014 color:bass
 bar:Secthdamon from:10/01/2013 till:09/01/2014 color:live width:3
 bar:Secthdamon from:08/12/2016 till:end color:bass
 bar:Secthdamon from:08/12/2016 till:end color:live width:3
 bar:Faust from:08/01/1992 till:09/30/1996 color:drums
 bar:Faust from:10/01/2013 till:07/01/2014 color:drums
 bar:Faust from:10/01/2013 till:07/01/2014 color:live width:3
 bar:Faust from:08/01/2014 till:09/01/2014 color:drums
 bar:Faust from:08/01/2014 till:09/01/2014 color:live width:3
 bar:Trym from:10/01/1996 till:12/20/2001 color:drums
 bar:Trym from:12/01/2005 till:06/30/2007 color:drums
 bar:Trym from:07/10/2014 till:07/20/2014 color:drums
 bar:Trym from:08/12/2016 till:end color:drums
 bar:Einar from:12/01/2005 till:06/30/2007 color:keyboards
 bar:Einar from:12/01/2005 till:06/30/2007 color:Bvocals width:7
 bar:Einar from:12/01/2005 till:06/30/2007 color:live width:3
 bar:Einar from:10/01/2013 till:09/01/2014 color:keyboards
 bar:Einar from:10/01/2013 till:09/01/2014 color:Bvocals width:7
 bar:Einar from:10/01/2013 till:09/01/2014 color:live width:3
 bar:Einar from:08/12/2016 till:12/31/2017 color:keyboards
 bar:Einar from:08/12/2016 till:12/31/2017 color:Bvocals width:7
 bar:Einar from:08/12/2016 till:12/31/2017 color:live width:3
 bar:Jorgen from:01/01/2018 till:end color:keyboards
 bar:Jorgen from:01/01/2018 till:end color:live width:3