Tracklist
| A1 | Black Forest |
| A2 | Isar |
| A3 | Leitha |
| A4 | Morava |
| A5 | Tisza |
| B1 | Sava |
| B2 | Beli Lom |
| B3 | Ialomita |
| B4 | Black Sea |
Credits
- Graphics – Vortex
- Mixed By, Mastered By – Carol Parkinson
- Mixed By, Mastered By, Engineer – John Driscoll
- Piano, Piano [Prepared], Trumpet, Trumpet [Drumpet] – Ralph Blauvelt
- Saxophone [Alto], Saxophone [Sopranino], Bass Clarinet, Piano [Prepared] – Brad Graves
Notes
On back cover:"The drumpet sound is produced by placing the bell of a trumpet flush against the head of a drum (in this case a tombak from Iran). Air escaping from the bell excites the drumhead and makes a growling sound."
"Other instruments include whistles, a, toy saxophone, duck calls, a DMX drum machine, a music box (Black Sea), and a microphone/ instrument called the "spider mike" designed by Richard Lerman (Isar)."
"The Vortex Danube Album is a selection of works from the digital recording of a performance (Isar, track 2 on side A, is a studio mix of two selections)."
"Recorded at Soundscape in New York, December 6, 1986"
No track times are listed.
Barcode and Other Identifiers
- Matrix / Runout (Side A runout): SP-002-A Δʍ
- Matrix / Runout (Side B runout): SP-002-B Δʍ
