| 2021-12-31 |  Empyrean @ LETS TECHNO records @ 2021-12-17 | 1 | Hard Techno | INDEFATIGABLE - Jubilation (Original Mix)5:48 | |
| 2021-12-31 | Empyrean @ LETS TECHNO records @ 2021-12-17 | 2 | Techno (Raw / Deep / Hypnotic) | INDEFATIGABLE - Empyrean (Original Mix)5:32 | |
| 2021-09-10 |  Ethereal Shadow @ LETS TECHNO records @ 2021-08-27 | 1 | Hard Techno | INDEFATIGABLE - Ethereal Shadow (Original Mix)5:25 | |
| 2021-09-10 | Ethereal Shadow @ LETS TECHNO records @ 2021-08-27 | 2 | Hard Techno | INDEFATIGABLE - Whirling Phantom (Original Mix)5:34 | |