Tracklist

A1	Ionisation	4:50
A2	Density 21.5	4:13
A3	Intégrales	9:41
B1	Octandre	6:47
B2	Hyperprism	3:50
B3	Poème Électronique	8:05

Companies, etc.

• Mastered At – Customatrix
• Pressed By – Columbia Records Pressing Plant, Pitman

Credits

• Composed By – Edgar Varèse*
• Conductor [Woodwinds, Brass And Percussion], Liner Notes – Robert Craft (tracks: A1 to B2)

Notes

Early repress on a grey Columbia '2-eye' label,
with '360 SOUND' in white print at bottom

Robert Craft conducts woodwinds, brass and percussion.

First recording of Poème Électronique.
Created directly on magnetic tape by the composer for the Brussels World's fair, 1958.

Columbia, Pitman pressing as indicated by a small inverted
"P" stamped in the runout areas.

Barcode and Other Identifiers

• Rights Society: BMI
• Matrix / Runout (Side A Label): XSM 49634
• Matrix / Runout (Side B Label): XSM 49635
• Matrix / Runout (Stamped Runout Side A): o XXSM-49634-1BA 1 P A4
• Matrix / Runout (Stamped Runout Side B): o XXSM-49635-1AJ 2 P A2
• Matrix / Runout (Stamped Runout Side A (Variant 2)): o XXSM-49634-1BC 1 P B2
• Matrix / Runout (Stamped Runout Side B (Variant 2)): o XXSM-49635-1AK 1 P B3

Other versions

Category	Artist	Title (Format)	Label	Category	Country	Year
MS 6146	Edgar Varèse*	Music Of Edgar Varèse ‎(LP, Album)	Columbia Masterworks	MS 6146	US	1960
S 75.695, S 75695	Varese* / Robert Craft, Columbia Symphony Orchestra	Varese* / Robert Craft, Columbia Symphony Orchestra - Density 21,5 / Hyperprism / Intégrales / Ionisation / Octandre / Poème Electronique ‎(LP, Album, Gat)	CBS, CBS	S 75.695, S 75695	France	1971
S 75.695, S 75695	Edgard Varèse - Membres Du Columbia Symphony Orchestra*, Robert Craft	Edgard Varèse - Membres Du Columbia Symphony Orchestra*, Robert Craft - Varèse: Density 21.5 - Hyperprism ‎(LP, Album)	CBS, CBS	S 75.695, S 75695	France	1968
A 26791	Edgar Varèse* - Robert Craft	Edgar Varèse* - Robert Craft - Music Of Edgar Varèse ‎(CD, RE)	One Way Records , Sony Music Special Products	A 26791	US	1996
A 01494 L , ABL.3392	Varèse*	Ionisation / Density 21.5 / Intégrales / Octandre / Hyperprism / Poème Electronique ‎(LP, Album)	Philips, Philips	A 01494 L , ABL.3392	UK	1960