You Must Be Certain of the Devil

You Must Be Certain of the Devil is the fifth album by American avant-garde performer Diamanda Galás, released on May 23, 1988 by record label Mute.

You Must Be Certain of the Devil
Studio album by Diamanda Galás
Released	May 23, 1988
Recorded	1987
Studio	Hansa, Berlin, Germany
Genre	Avant-garde
Length	31:47
Label	Mute
Producer	Gareth Jones Diamanda Galás
Diamanda Galás chronology
Saint of the Pit (1986) You Must Be Certain of the Devil (1988) Masque of the Red Death (1988)

Professional ratings

Review scores
Source	Rating
AllMusic

Content

You Must Be Certain of the Devil is the final instalment in her "Masque of the Red Death" trilogy about the AIDS epidemic. The selections from this instalment are rooted in American gospel music.

Track listing

Side A

No.	Title	Writer(s)	Length
1.	"Swing Low, Sweet Chariot"	Wallace Willis	2:44
2.	"Double-Barrel Prayer"	Diamanda Galás	5:01
3.	"Let's Not Chat About Despair"	Diamanda Galás	5:00
4.	"Birds of Death"	Diamanda Galás	5:15

Side B

No.	Title	Writer(s)	Length
1.	"You Must Be Certain of the Devil"	Diamanda Galás	4:55
2.	"Let My People Go"	Diamanda Galás, traditional	3:22
3.	"Malediction"	Diamanda Galás	4:17
4.	"The Lord Is My Shepherd"	Diamanda Galás	1:13

Personnel

• Diamanda Galás – all vocals, Hammond organ, piano, synthesizers, keyboard bass, & production
• Charlie Terstappen – drums
• Peter Zimmermann – percussion (A4)
• Kurt Schmidt – guitar (A2 & A4)
• Naut Humon – String samples (A3)
• Gareth Jones – production
• John Dent – mastering
• Pete Schmidt – Assistant engineering

Charts

Chart (1988)	Peak position
UK Indie Chart	12

External links

• You Must Be Certain of the Devil at Discogs (list of releases)