Q.E.D. is an album of contemporary classical music by guitarist Terje Rypdal

Terje Rypdal

Terje Rypdal is a Norwegian guitarist and composer. Most of his music has been released on albums of the German record label ECM. Rypdal has collaborated both as a guitarist and as a composer with other ECM artists such as Ketil Bjørnstad and David Darling...

 recorded in 1991 and released on the ECM label in 1993.

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".

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
  Terje Rypdal
  Terje Rypdal is a Norwegian guitarist and composer. Most of his music has been released on albums of the German record label ECM. Rypdal has collaborated both as a guitarist and as a composer with other ECM artists such as Ketil Bjørnstad and David Darling...
  
   — electric guitar
  Electric guitar
  An electric guitar is a guitar that uses the principle of direct electromagnetic induction to convert vibrations of its metal strings into electric audio signals. The signal generated by an electric guitar is too weak to drive a loudspeaker, so it is amplified before sending it to a loudspeaker...
  
  
• Borealis Ensemble — conducted
  Conducting
  Conducting is the art of directing a musical performance by way of visible gestures. The primary duties of the conductor are to unify performers, set the tempo, execute clear preparations and beats, and to listen critically and shape the sound of the ensemble...
  
  by Christian Eggen (track 1)