Tracklist
| A | Um & Aargh |
| B | Souvenir |
Notes
The B-side label credits the song "Souvenirs" though the cover and the CD re-issue of "Sides" credits the song as "Souvenir".Barcode and Other Identifiers
- Matrix / Runout (Side A: Stamped): ARISTA 252 A//1▽ET 1 1
- Matrix / Runout (Side A: Etched): RAYS
- Matrix / Runout (Side B: Stamped): ARISTA 252 B//1▽ET 1 1 4
Other versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| 6079 626 | Anthony Phillips | Um & Aargh (7", Single) | Vertigo | 6079 626 | Netherlands | 1979 |
