Appears on releases
| # | Title | Length | Track Artist | Release Title | Release Artist | Release Group Type | Country/Date | Label | Catalog# |
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 2.13 | Mercy, Mercy (Sumpin' Else TV #2) (aftershow) | 3:34 | 13th Floor Elevators | Sign of the 3 Eyed Men | 13th Floor Elevators | Album + Compilation |
| International Artists | IA 14/CD-1, IA 14/CD-10, IA 14/CD-2, IA 14/CD-3, IA 14/CD-4, IA 14/CD-5, IA 14/CD-6, IA 14/CD-7, IA 14/CD-8, IA 14/CD-9 |