Q.E.D. is an album of contemporary classical music by guitarist Terje Rypdal recorded in 1991 and released on the ECM label in 1993.[1]

Q.E.D.
Studio album by Terje Rypdal
Released	1993
Recorded	August and December 1991
Genre	Contemporary classical music
Length	52:11
Label	ECM
Producer	Manfred Eicher
Terje Rypdal chronology
Undisonus (1990) Q.E.D. (1993) If Mountains Could Sing (1994)

Reception

The Allmusic review by Paul Collins awarded the album 3 stars stating "Rypdal often alternates sections of great dissonance with near silence, or lonely sustained notes by just one or two instruments. It can have the sweeping starkness of a tracking shot over a fjord, but there's a certain coldness to it as well, and even confirmed fans of his jazz work may take a while to warm up to it".[2]

Professional ratings

Review scores
Source	Rating
Allmusic	[2]

Track listing

All compositions by Terje Rypdal

1. "Quod Erat Demonstrandum (Opus 52): 1st Movement" - 4:56
2. "Quod Erat Demonstrandum (Opus 52): 2nd Movement" - 2:20
3. "Quod Erat Demonstrandum (Opus 52): 3rd Movement" - 4:55
4. "Quod Erat Demonstrandum (Opus 52): 4th Movement" - 4:52
5. "Quod Erat Demonstrandum (Opus 52): 5th Movement" - 18:21
6. "Largo (Opus 55)" - 16:47

Personnel

• Terje Rypdal — electric guitar
• Borealis Ensemble — conducted by Christian Eggen (track 1)

References